Prepress Technical Specifications

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Bleed : The bleed must exceed the final size by 1/8” of an inch, 1/4” recommended. Make sure there are no crop marksinside the bleed. ***For saddle stitch jobs with 96 pages and over, to supply files with 1/4” of an inch bleed.

Exemple

Final size: Size of the book out of the bindery. That size must be show in the document properties of the applicationfile ( Quark, InDesign ect..) That box must always show the trim box in the pdf file.

Crop marks : It is necssary to supply PDf with crop marks with an offset of 1/4 of an inch (18 pts) in the exterior of thefinal size. Exemple

Security margin : In order to avoid valuable information getting cut off due to the binding, it is necessary while doingyour page setup, to include some guides at a distance of 1/4 of an inch inside your final size.

PDF File : All pdf files must be supplied as single page (not spread). Trim box must be defined correctly with crop marksand bleed must exceed the final size by 1/8” of an inch, 1/4” recommended. See how to create and verify pdf for moreinformation.

Click here to seean example

Click here to seean example

Click here to seean example

Click here to seean example

Click here to seean example

To download a printable version of the pre-

Spine : In left-to-right read languages (like English), books are bound on the left side of the cover; looking from on top, thepages increase counter-clockwise. In right-to-left languages, books are bound on the right. In both cases, this is so the endof a page coincides with where you flip. Spine size is calculated by number of pages /2 X paper thickness. Click here to see

an example

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PDF: All PDF files must be provided as single pages (as a spread for covers with spines only).Single-page PDFs (1 PDF per page) are preferable, as they allow for quicker transfer and processing. It is important to assign file names thatadequately reflect the page number.

Bleed and Crop Marks: In the finished size, a minimum 1/8" bleed is required; a 1/4" is recommended. Ensure that the bleed area containsno crop marks. **Note: For binding jobs of 80 pages or more, we recommend providing files with the bleed adjusted to a 1/4".

Finished Size: Clients must provide files as single pages, in the right format and in keeping with original specifications. The printing team willnot enlarge or scale down formats before printing.

Safety Margin: To avoid cutting off information due to folding variations, guides must be set at a 1/4" inside the trim during page layout.

Multi-Version Document: Make a single document with one layer per version (example: one base layer for duplicate images, one layerfor the French version and one layer for the English version.

Rich Black: Commercial jobs = 100% Black with 60% Cyan, 20% Magenta and 20% Yellow.

CMYK vs. Pantone: We strongly recommend converting native PMS files to CMYK for CMYK printing projects. Although our system auto-matically converts Pantone colours, combining them with a transparency during conversion could produce poor results (art effect).

Click here to seean example

T

X paper thickness.

to supply files with 1/4” of an inch bleed.

Click here to seean example

T

X paper thickness.

to supply files with 1/4” of an inch bleed.

Click here to seean example

T

X paper thickness.

PDF: All PDF files must be provided as single pages (as a spread for covers with spines only).Single-page PDFs (1 PDF per page) are preferable, as they allow for quicker transfer and processing. It is important to assign file names thatadequately reflect the page number.

Bleed and Crop Marks: In the finished size, a minimum 1/8" bleed is required; a 1/4" is recommended. Ensure that the bleed area containsno crop marks. **Note: For binding jobs of 80 pages or more, we recommend providing files with the bleed adjusted to a 1/4".

Finished Size: Clients must provide files as single pages, in the right format and in keeping with original specifications. The printing team willnot enlarge or scale down formats before printing.

Safety Margin: To avoid cutting off information due to folding variations, guides must be set at a 1/4" inside the trim during page layout.

Multi-Version Document: Make a single document with one layer per version (example: one base layer for duplicate images, one layerfor the French version and one layer for the English version.

Rich Black: Commercial jobs = 100% Black with 60% Cyan, 20% Magenta and 20% Yellow.

CMYK vs. Pantone: We strongly recommend converting native PMS files to CMYK for CMYK printing projects. Although our system auto-matically converts Pantone colours, combining them with a transparency during conversion could produce poor results (art effect).

to supply files with 1/4” of an inch bleed.

lied as single page (not spread). Trim box must be defined correctly with crop marksa by 1/8” of an inch, 1/4” recommended. See how to create and verify pdf for morei

X paper thickness.

images, one layerf

Click here to seean example

T

X paper thickness.

to supply files with 1/4” of an inch bleed.

lied as single page (not spread). Trim box must be defined correctly with crop marksa by 1/8” of an inch, 1/4” recommended. See how to create and verify pdf for morei

X paper thickness.

images, one layerf

Click here to seean example

T

X paper thickness.

to supply files with 1/4” of an inch bleed.

lied as single page (not spread). Trim box must be defined correctly with crop marksa by 1/8” of an inch, 1/4” recommended. See how to create and verify pdf for morei

X paper thickness.

images, one layerf

Click here to seean example

T

X paper thickness.

to supply files with 1/4” of an inch bleed.

lied as single page (not spread). Trim box must be defined correctly with crop marksa by 1/8” of an inch, 1/4” recommended. See how to create and verify pdf for morei

X paper thickness.

images, one layerf

Click here to seean example

T

X paper thickness.

PDF: All PDF files must be provided as single pages (as a spread for covers with spines only).Single-page PDFs (1 PDF per page) are preferable, as they allow for quicker transfer and processing. It is important to assign file names thatadequately reflect the page number.

Bleed and Crop Marks: In the finished size, a minimum 1/8" bleed is required; a 1/4" is recommended. Ensure that the bleed area containsno crop marks. **Note: For binding jobs of 80 pages or more, we recommend providing files with the bleed adjusted to a 1/4".

Finished Size: Clients must provide files as single pages, in the right format and in keeping with original specifications. The printing team willnot enlarge or scale down formats before printing.

Safety Margin: To avoid cutting off information due to folding variations, guides must be set at a 1/4" inside the trim during page layout.

Multi-Version Document: Make a single document with one layer per version (example: one base layer for duplicate images, one layerfor the French version and one layer for the English version.

Rich Black: Commercial jobs = 100% Black with 60% Cyan, 40% Magenta and 40% Yellow.

CMYK vs. Pantone:We strongly recommend converting native PMS files to CMYK for CMYK printing projects. Although our system auto-matically converts Pantone colours, combining them with a transparency during conversion could produce poor results (art effect).

to supply files with 1/4” of an inch bleed.

a i

X paper thickness.

preferable, as they allow for quicker transfer and processing. It is important to assign file names that

a

images, one layerf

an example

T

X paper thickness.

images, one layerf

to supply files with 1/4” of an inch bleed.

i

X paper thickness.

images, one layerf

Click here to seean example

T

X paper thickness.

to supply files with 1/4” of an inch bleed.

a i

X paper thickness.

preferable, as they allow for quicker transfer and processing. It is important to assign file names that

a

images, one layerf

Click here to seean example

T

X paper thickness.

images, one layerf

to supply files with 1/4” of an inch bleed.

i

X paper thickness.

images, one layerf

Click here to seean example

T

X paper thickness.

to supply files with 1/4” of an inch bleed.

lied as single page (not spread). Trim box must be defined correctly with crop marksa by 1/8” of an inch, 1/4” recommended. See how to create and verify pdf for morei

X paper thickness.

preferable, as they allow for quicker transfer and processing. It is important to assign file names that

a

images, one layerf

Click here to seean example

T

X paper thickness.

images, one layerf

to supply files with 1/4” of an inch bleed.

lied as single page (not spread). Trim box must be defined correctly with crop marksa by 1/8” of an inch, 1/4” recommended. See how to create and verify pdf for morei

X paper thickness.

images, one layerf

Click here to seean example

T

X paper thickness.

to supply files with 1/4” of an inch bleed.

lied as single page (not spread). Trim box must be defined correctly with crop marksa by 1/8” of an inch, 1/4” recommended. See how to create and verify pdf for morei

X paper thickness.

preferable, as they allow for quicker transfer and processing. It is important to assign file names that

a

images, one layerf

Click here to seean example

T

X paper thickness.

images, one layerf

to supply files with 1/4” of an inch bleed.

lied as single page (not spread). Trim box must be defined correctly with crop marksa by 1/8” of an inch, 1/4” recommended. See how to create and verify pdf for morei

X paper thickness.

images, one layerf

Click here to seean example

T

X paper thickness.

Next pagePrevious page

Trapping : Trapping is the overlap of adjoining colours to prevent the appearance of paper when press mis-registrationoccurs. Due to the speed and characteristics of paper passing through the press, applying trap to all elements on the pagecan easily control this process variation. Customer must provide pdf file with overprint trapping done correctly.Solisco will keep overprint trapping from customer and apply automatic trap to all pages. Please inform your SalesRepresentative or Project Coordinator if you are supplying pre-trapped pages or have overprints applied.

CMYK vs RGB :On-screen color is RGB and print is CMYK. In effect, the two are opposites since again, one is subtrac-tive color and the other is additive color. When you manipulate and create images in the digital environment, it’s all RGB-- although programs like Adobe Photoshop allow you to convert to CMYK and effectively simulate the CMYK color spaceon-screen. (Photoshop is actually working behind the scenes in another color space but let’s not get into that.) The key pointis that since on-screen is RGB, you have to convert to CMYK to print.

Multiversion document : Make a single document with 1 layer per version (example: 1 layer “Base” for the imagescommon, 1 layer for the French version and 1 layer for the English version.

Rich black : For commercial jobs = 100% Black, 40% Cyan, 20% Magenta and 20% Yellow

Proofs : It is necessary to supply proofs to your printer in page order, printed from the latest PDF version. This documentwill permit us to verify the integrity of your document.

Click here to seean example

Click here to seean example

To download a printable version of the pre-press technical specifications, click here

Prepress Technical Specifications

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Trapping: Trapping is a technique that compensates for press misregistration by overlapping adjoining colours, preventing the appearanceof gaps. Misregistration is caused by press speed and paper type as it passes through the press. Adding trapping to each element on the pageis an easy way to control this variable process. Clients must provide PDFs with clear overprinting specifications.Solisco takes requested overprinting into consideration and applies automatic trapping to each page. Please inform your sales representativeor the coordinator if you already applied trapping to your files.

Spine: The book's bound edge. For perfect binding, adequate space must be left to accommodate the number of pages and type of paper. Tocalculate the spine's width, count the number of pages, divide by two and multiply by the width of the paper. If you do not know which type ofpaper you are using, contact the sales representative or coordinator.

Whitespace – Gluing Covers 2 and 3

Perfect binding and select bindingCovers 2 and 3 (-1/8 of white at the spine of each cover)First and last pages (-1/8 of white at the spine of each page)

Select bindingEnd papers: (-1/8 white at the spine + the pre-glued section on C2 and C3 must be free of any print). First and last pages (-1/8 white at the spine of each page).

Case bindingEnd papers: (-1/8 of white at the spine + the pre-glued section on C2 and C3 must be free of any print). First and last pages (-1/8 of white at the spine of each page).

Perfect bindingEnd papers: (-1/8 of white at the spine + the pre-glued section on C2 and C3 must be free of any print). First and last pages (-3/16** of white at the spine of each page).

(**) Note: For perfect binding, reserve an additional 1/16" margin to allow for high tipping of end papers.

Click here to see

an example

T Click here to see

an example

T

Trapping: Trapping is a technique that compensates for press misregistration by overlapping adjoining colours, preventing the appearanceof gaps. Misregistration is caused by press speed and paper type as it passes through the press. Adding trapping to each element on the pageis an easy way to control this variable process. Clients must provide PDFs with clear overprinting specifications.Solisco takes requested overprinting into consideration and applies automatic trapping to each page. Please inform your sales representativeor the coordinator if you already applied trapping to your files.

Spine: The book's bound edge. For perfect binding, adequate space must be left to accommodate the number of pages and type of paper. Tocalculate the spine's width, count the number of pages, divide by two and multiply by the width of the paper. If you do not know which type ofpaper you are using, contact the sales representative or coordinator.

Whitespace – Gluing Covers 2 and 3

Perfect binding and select bindingCovers 2 and 3 (-1/8 of white at the spine of each cover)First and last pages (-1/8 of white at the spine of each page)

Select bindingEnd papers: (-1/8 white at the spine + the pre-glued section on C2 and C3 must be free of any print). First and last pages (-1/8 white at the spine of each page).

Case bindingEnd papers: (-1/8 of white at the spine + the pre-glued section on C2 and C3 must be free of any print). First and last pages (-1/8 of white at the spine of each page).

Perfect bindingEnd papers: (-1/8 of white at the spine + the pre-glued section on C2 and C3 must be free of any print). First and last pages (-3/16** of white at the spine of each page).

(**) Note: For perfect binding, reserve an additional 1/16" margin to allow for high tipping of end papers.

lied as single page (not spread). Trim box must be defined correctly with crop marksa by 1/8” of an inch, 1/4” recommended. See how to create and verify pdf for morei

i

Click here to see

an example

T

lied as single page (not spread). Trim box must be defined correctly with crop marksa by 1/8” of an inch, 1/4” recommended. See how to create and verify pdf for morei

i

Click here to see

an example

T

Trapping: Trapping is a technique that compensates for press misregistration by overlapping adjoining colours, preventing the appearanceof gaps. Misregistration is caused by press speed and paper type as it passes through the press. Adding trapping to each element on the pageis an easy way to control this variable process. Clients must provide PDFs with clear overprinting specifications.Solisco takes requested overprinting into consideration and applies automatic trapping to each page. Please inform your sales representativeor the coordinator if you already applied trapping to your files.

Spine: The book's bound edge. For perfect binding, adequate space must be left to accommodate the number of pages and type of paper. Tocalculate the spine's width, count the number of pages, divide by two and multiply by the width of the paper. If you do not know which type ofpaper you are using, contact the sales representative or coordinator.

Whitespace – Gluing Covers 2 and 3

Perfect binding and select bindingCovers 2 and 3 (-1/8 of white at the spine of each cover)First and last pages (-1/8 of white at the spine of each page)

Select bindingEnd papers: (-1/8 white at the spine + the pre-glued section on C2 and C3 must be free of any print). First and last pages (-1/8 white at the spine of each page).

Case bindingEnd papers: (-1/8 of white at the spine + the pre-glued section on C2 and C3 must be free of any print). First and last pages (-1/8 of white at the spine of each page).

Perfect bindingEnd papers: (-1/8 of white at the spine + the pre-glued section on C2 and C3 must be free of any print). First and last pages (-3/16** of white at the spine of each page).

(**) Note: For perfect binding, reserve an additional 1/16" margin to allow for high tipping of end papers.

to supply files with 1/4” of an inch bleed.

lied as single page (not spread). Trim box must be defined correctly with crop marksa by 1/8” of an inch, 1/4” recommended. See how to create and verify pdf for morei

X paper thickness.

preferable, as they allow for quicker transfer and processing. It is important to assign file names that

a

images, one layerf

Click here to seean example

T

X paper thickness.

f

to supply files with 1/4” of an inch bleed.

lied as single page (not spread). Trim box must be defined correctly with crop marksa by 1/8” of an inch, 1/4” recommended. See how to create and verify pdf for morei

X paper thickness.

f

Click here to seean example

T

X paper thickness.

to supply files with 1/4” of an inch bleed.

a i

X paper thickness.

preferable, as they allow for quicker transfer and processing. It is important to assign file names that

a

images, one layerf

Click here to seean example

T

X paper thickness.

images, one layerf

to supply files with 1/4” of an inch bleed.

i

X paper thickness.

images, one layerf

Click here to seean example

T

X paper thickness.

Separations and Halftones : Web should have a highlight not less than 3% and a maximum of 90% in the shadowarea. This will give the greatest amount of detail on a coated stock. Products using uncoated stock should not exceed 80%in the shadow area. Sheetfed should have a highlight not less than 3%, and a maximum of 97% in the shadow area. Thiswill give the greatest amount of detail on a coated stock.

Print Density : Print Density requires be consistent when printing several colors on top of each other. The maximum den-sity in screen builds and separations should not exceed 240% for products on Newsprint, 260% on uncoated or enviro,300% for coated paper grade 3-5 Web press and 315% for Sheetfed product paper Grade 1. Exceeding this percentage will cause images and screen to plug in prematurely.

Reverse Type : Reverse Type out of single color screens should not be smaller than 6 point. When reverse san-serif typeis used in multi-color builds, type should be a minimum of 10 pts. Serif reverse type should not be smaller than 14 ptsminimum type size. When using the same colour type in a graduated screen the screen should not exceed 40% at the loca-tion of the type. All fine black type and/or graphics should overprint background elements rather than knocking out thebackground.

Typography : For the typography of one color, the size of the character must not be less than 6 pts. When the typo is incolor without Serif, the size of the character cannot be less than 10 pts. For Serif, the size must be minimum 14 pts. Whenyou are using a typo of the same color in a gradient, the gradient should not exceed 40% where the typo is situated. Allof the thin characters and graphics in black must be overprint on backgrounds and not knockout.

Click here to seean example

Click here to seean example

To download a printable version of the pre-

Click here to seean example

Prepress Technical Specifications

Dark and Light Tones: A minimum 3% highlight and maximum 90% shadow are required for web press. This will ensure the greatestaccuracy for jobs on coated stock. Jobs on uncoated stocks must not exceed 80% shadow. A minimum 3% highlight and maximum 97% shadoware required for sheetfed presses. This will ensure the greatest accuracy for jobs on coated stock.

Total Ink Coverage: For grade 3-5 coated paper on web press, we recommend total ink coverage between 290% and 300% (SWOP spec-ifications). For grade 1 coated paper on sheetfed press, we recommend a maximum of 315% (GRACoL specifications). For all Offset or Environprojects, we recommend a maximum of 260%. For newsprint, the total ink coverage cannot exceed 240%. If you exceed the maximum amountof ink for your paper type, images will be darker (see set off).

Typography: For a colour typeface, character height must be at least 6 points. For a sans serif colour typeface, character height must be atleast 10 points. For a serif typeface, the minimum height is 14 points. When using typefaces of the same colour, blends must not exceed 40%on the type. Light characters and graphics in black ink must be overprinted onto background elements instead of knocking out.

CMYK vs. RGB: “RGB” (Red, Green and Blue) is an additive colour space used to display images on a computer monitor. “CMYK” (Cyan,Magenta, Yellow and Black) is a subtractive colour space used to print images. These are also process colours. Every type of job requires aCMYK process. You are strongly encouraged to convert RBG to CMYK yourself. Otherwise, our system will convert them automatically and theimage may not turn out as you expected.

Click here to seean example

T

X paper thickness.

Click here to seean example

T

X paper thickness.

Click here to seean example

T

X paper thickness.

Dark and Light Tones: A minimum 3% highlight and maximum 90% shadow are required for web press. This will ensure the greatestaccuracy for jobs on coated stock. Jobs on uncoated stocks must not exceed 80% shadow. A minimum 3% highlight and maximum 97% shadoware required for sheetfed presses. This will ensure the greatest accuracy for jobs on coated stock.

Total Ink Coverage: For grade 3-5 coated paper on web press, we recommend total ink coverage between 290% and 300% (SWOP spec-ifications). For grade 1 coated paper on sheetfed press, we recommend a maximum of 315% (GRACoL specifications). For all Offset or Environprojects, we recommend a maximum of 260%. For newsprint, the total ink coverage cannot exceed 240%. If you exceed the maximum amountof ink for your paper type, images will be darker (see set off).

Typography: For a colour typeface, character height must be at least 6 points. For a sans serif colour typeface, character height must be atleast 10 points. For a serif typeface, the minimum height is 14 points. When using typefaces of the same colour, blends must not exceed 40%on the type. Light characters and graphics in black ink must be overprinted onto background elements instead of knocking out.

CMYK vs. RGB: “RGB” (Red, Green and Blue) is an additive colour space used to display images on a computer monitor. “CMYK” (Cyan,Magenta, Yellow and Black) is a subtractive colour space used to print images. These are also process colours. Every type of job requires aCMYK process. You are strongly encouraged to convert RBG to CMYK yourself. Otherwise, our system will convert them automatically and theimage may not turn out as you expected.

to supply files with 1/4” of an inch bleed.

i

X paper thickness.

images, one layerf

Click here to seean example

T

X paper thickness.

to supply files with 1/4” of an inch bleed.

lied as single page (not spread). Trim box must be defined correctly with crop marksa by 1/8” of an inch, 1/4” recommended. See how to create and verify pdf for morei

X paper thickness.

images, one layerf

Click here to seean example

T

X paper thickness.

to supply files with 1/4” of an inch bleed.

lied as single page (not spread). Trim box must be defined correctly with crop marksa by 1/8” of an inch, 1/4” recommended. See how to create and verify pdf for morei

X paper thickness.

images, one layerf

Click here to seean example

T

X paper thickness.

Dark and Light Tones: A minimum 3% highlight and maximum 90% shadow are required for web press. This will ensure the greatestaccuracy for jobs on coated stock. Jobs on uncoated stocks must not exceed 80% shadow. A minimum 3% highlight and maximum 97% shadoware required for sheetfed presses. This will ensure the greatest accuracy for jobs on coated stock.

Total Ink Coverage: For grade 3-5 coated paper on web press, we recommend total ink coverage between 290% and 300% (SWOP spec-ifications). For grade 1 coated paper on sheetfed press, we recommend a maximum of 315% (GRACoL specifications). For all Offset or Environprojects, we recommend a maximum of 260%. For newsprint, the total ink coverage cannot exceed 240%. If you exceed the maximum amountof ink for your paper type, images will be darker (see set off).

Typography: For a colour typeface, character height must be at least 6 points. For a sans serif colour typeface, character height must be atleast 10 points. For a serif typeface, the minimum height is 14 points. When using typefaces of the same colour, blends must not exceed 40%on the type. Light characters and graphics in black ink must be overprinted onto background elements instead of knocking out.

CMYK vs. RGB: “RGB” (Red, Green and Blue) is an additive colour space used to display images on a computer monitor. “CMYK” (Cyan,Magenta, Yellow and Black) is a subtractive colour space used to print images. These are also process colours. Every type of job requires aCMYK process. You are strongly encouraged to convert RBG to CMYK yourself. Otherwise, our system will convert them automatically and theimage may not turn out as you expected.

to supply files with 1/4” of an inch bleed.

a i

X paper thickness.

a

images, one layerf

Click here to seean example

T

X paper thickness.

images, one layerf

to supply files with 1/4” of an inch bleed.

i

X paper thickness.

images, one layerf

Click here to seean example

T

X paper thickness.

to supply files with 1/4” of an inch bleed.

lied as single page (not spread). Trim box must be defined correctly with crop marksa by 1/8” of an inch, 1/4” recommended. See how to create and verify pdf for morei

X paper thickness.

preferable, as they allow for quicker transfer and processing. It is important to assign file names that

a

images, one layerf

Click here to seean example

T

X paper thickness.

images, one layerf

to supply files with 1/4” of an inch bleed.

lied as single page (not spread). Trim box must be defined correctly with crop marksa by 1/8” of an inch, 1/4” recommended. See how to create and verify pdf for morei

X paper thickness.

images, one layerf

Click here to seean example

T

X paper thickness.

to supply files with 1/4” of an inch bleed.

lied as single page (not spread). Trim box must be defined correctly with crop marksa by 1/8” of an inch, 1/4” recommended. See how to create and verify pdf for morei

X paper thickness.

preferable, as they allow for quicker transfer and processing. It is important to assign file names that

a

images, one layerf

Click here to seean example

T

X paper thickness.

images, one layerf

to supply files with 1/4” of an inch bleed.

lied as single page (not spread). Trim box must be defined correctly with crop marksa by 1/8” of an inch, 1/4” recommended. See how to create and verify pdf for morei

X paper thickness.

images, one layerf

Click here to seean example

T

X paper thickness.

Next pagePrevious page

Leave page

7 7/810

3/4

Spin

e= 9

/32

C1C4

1/41/

4

1/4

1/4

1/4

1/4

1/4 1/4

Safety Margin - Example

Previous pageLeave page

Safety Margin Example

Safety Margin Example

Safety Margin Example

7 7/8

10 3

/4

Spin

e =

9/32

C1C4

1/8 or 1/4

1/8 or 1/4

1/8 or 1/4

1/8 or 1/4

1/8

or 1

/4

1/8 or 1/4

Spine example

Intro Prepress procedure Download Links Next pagePrevious page Leave page

Spine Example

Spine Example

Spine Example

Spine Example

7 7/8

10 3

/4 1

1/4

1/4

1/4

1/4

Intro Prepress procedure Download Links Next pagePrevious page

Final Size - (single page)

Example

Leave page

Finished SizeExample(single page)

7 7/810

3/4

Spin

e= 9

/32

C1C4

1/8 ou 1/4

1/8 ou 1/4

1/8 ou 1/4

1/8 ou 1/41/

8 ou

1/4

1/8 ou 1/4

Bleed Example

7 7/8

10 3

/4

Spin

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C1C4

1/8 ou 1/4

1/8 or1/4 1/8 or1/4

1/8 or1/4 1/8 or1/4

1/8

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/4Bleed and Crop Marks Example

Bleed Crop Marks

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10 3

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7 7/8

10 3

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Spin

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1/8 or1/4 1/8 or1/4

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Bleed Crop Marks

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Intro Prepress procedure Download Links Next pagePrevious page

7 7/8

10 3

/4

Spin

e= 9

/32

C1C4

1/8 ou 1/4

1/8 or1/4 1/8 or1/4

1/8 or1/4 1/8 or1/4

1/8

ou 1

/4Bleed and Crop Marks Example

Bleed Crop Marks

Leave page

7 7/8

10 3

/4 1

What is trapping???

What is trapping?Trapping is an acknowledgment that no printing process is perfect. It compensates for mechanical shifts or stretching ofpaper or plates in the printing process and provides an overlap of colors to prevent unprinted paper from showing in thefinal printed product.Trapping described in this documentation is not to be confused with the terms wet trapping or dry trapping whichdescribes behavior between inks or between ink and paper and are used most frequently at the printing press.

Why to do trapping!

Generally speaking, the registration precision when printing several colors one on top the other has a certain degreeof tolerance. Depending on the printing process used, registration shifts can be large enough to cause visible defectsin the final printed result. One of the most conspicuous irregularities are areas of unprinted paper, called "flashes"or "halos".

A flash is a white gap that appears between two relatively dark areas of color which are supposed to meet. Thishappens when the colors are made up of different separations and the separations do not register exactly on theborder between the colors. A small area of paper remains unprinted, which, in contrast to the two darker colors,appears as a bright, very noticeable stripe.

Trapping describes the measures and methods that can be used to eliminate or conceal the occurrence of flashes.

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X paper thickness.

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Definition of Trapping

A technique for overlapping adjacent colours, lighter over darker.

What is the purpose of trapping?

To compensate for misregistration issues.

Trapping means increasing the contrast between colours with the same components. Digitally, it can be ex-plained as the creation of independent elements that delete subjacent colours between two elements super-imposed on an image.This technique is key to creating high-quality images. Trapping must be used in general, especially if thereis no common colour area for superimposing the image.

Another overlapping technique is to omit ink in areas with existing configurations. In some cases, coloursmust not be added to avoid changing the print colour.

Trapping

Definition of Trapping

A technique for overlapping adjacent colours, lighter over darker.

What is the purpose of trapping?

To compensate for misregistration issues.

Trapping means increasing the contrast between colours with the same components. Digitally, it can be ex-plained as the creation of independent elements that delete subjacent colours between two elements super-imposed on an image.This technique is key to creating high-quality images. Trapping must be used in general, especially if thereis no common colour area for superimposing the image.

Another overlapping technique is to omit ink in areas with existing configurations. In some cases, coloursmust not be added to avoid changing the print colour.

Trapping

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Definition of Trapping

A technique for overlapping adjacent colours, lighter over darker.

What is the purpose of trapping?

To compensate for misregistration issues.

Trapping means increasing the contrast between colours with the same components. Digitally, it can be ex-plained as the creation of independent elements that delete subjacent colours between two elements super-imposed on an image.This technique is key to creating high-quality images. Trapping must be used in general, especially if thereis no common colour area for superimposing the image.

Another overlapping technique is to omit ink in areas with existing configurations. In some cases, coloursmust not be added to avoid changing the print colour.

Trapping

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Trapping is defined by 4 differents terms:

In PostScript, every object that is placed on another object will normally leave anunprinted image of itself on the lower object. Trapping will be required for all casesbecause the “hole” is white unprinted paper.

Objects printed over other objects are overprinted. This mix can result in unexpected colors.

A- Overprint B- Knockout

D- ChokeC- Spread

What is trapping???

B - Knockout

A - Overprint

C - Spread

D - Choke

The island color is lighter than the background color. The lighter island color is expanded into the background to provide a trap that does not use an intermediate color.

The background color is lighter than the foreground color. The foreground or“island” color is darker. The lighter background color is extended into the islandcolor to provide a trap. No intermediate color is used.

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Trapping involves the four following terms:

A - Overprint B - Knockout

C - Spread D- Choke

Overprint involves printing one colour on top of another to create a thirdcolour.

Knockout involves covering part of the bottom colour so the top colourcan be printed without touching it.The term used to describe this printing technique is called kiss fit.Colours are printed side-by-side without touching.

Spread involves extending the print surface of one element by over-lapping it onto another.

Choking involves extending the print surface of an element underneathanother.

In these last two techniques, spread and choke, overprint and knockoutare also used: one part of the top element is printed over the bottomelement, while the larger part remains untouched.

Trapping

Trapping involves the four following terms:

A - Overprint B - Knockout

C - Spread D- Choke

Overprint involves printing one colour on top of another to create a thirdcolour.

Knockout involves covering part of the bottom colour so the top colourcan be printed without touching it.The term used to describe this printing technique is called kiss fit.Colours are printed side-by-side without touching.

Spread involves extending the print surface of one element by overlap-ping it onto another.

Choking involves extending the print surface of an element underneathanother.

In these last two techniques, spread and choke, overprint and knockoutare also used: one part of the top element is printed over the bottomelement, while the larger part remains untouched.

Trapping

Trapping involves the four following terms:

A - Overprint B - Knockout

C - Spread D- Choke

Overprint involves printing one colour on top of another to create a thirdcolour.

Knockout involves covering part of the bottom colour so the top colourcan be printed without touching it.The term used to describe this printing technique is called kiss fit.Colours are printed side-by-side without touching.

In these last two techniques, spread and choke, overprint and knockoutare also used: one part of the top element is printed over the bottomelement, while the larger part remains untouched.

Trapping

Spread involves extending the print surface of one element by overlap-ping it onto another.

Choking involves extending the print surface of an element underneathanother.

Highlight

Shadow

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Light tones

Dark tones

Light tones

Dark tones

Light tones

Dark tones

Total Ink Coverage

In this zone, the total inkdensity is at 331%; it istoo high.

Intro Prepress procedure Download Links Next pagePrevious page

In this zone, the total inkdensity is at 290%. This isa good percentage.

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X paper thickness.

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In this area, the total ink coverage is 331%. It is too high.

In this area, the total ink is 260%.It is just right.

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to supply files with 1/4” of an inch bleed.

X paper thickness.

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images, one layerf

In this area, the total ink coverage is 331%. It is too high.

In this area, the total ink is 260%.It is just right.

Next page

to supply files with 1/4” of an inch bleed.

X paper thickness.

Leave page

images, one layerf

images, one layerf

In this area, the total ink coverage is 331%. It is too high.

In this area, the total ink is 260%.It is just right.

Next page

to supply files with 1/4” of an inch bleed.

X paper thickness.

Leave page

images, one layerf

images, one layerf

images, one layerf

In this area, the total ink coverage is 331%. It is too high.

In this area, the total ink is 260%.It is just right.

RGB and CMYK colors

RGB = Additive

CMYK = Substractive

Gammut

K

Colours RGB vs. CMYK

K

Colours RGB vs. CMYK

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to supply files with 1/4” of an inch bleed.

X paper thickness.

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images, one layerf

images, one layerf

K

Colours RGB vs. CMYK

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Good pdf

Crop marks with offset of a minimum of 12 pts.

Minimum of 1/8 of bleed (1/4 suggested for large page count brochure)

Good pdf

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Proper PDF

Trim marks with a minimum offset of 18 pts.

Bleed open at a minimum of 1/8

(1/4 is recommended for a softbinding of more than 80 pages)

Proper PDF

Bleed open at a minimum of 1/8

(1/4 is recommended for a soft binding of more than 80 pages)

Trim marks with a minimum offset of 18 pts.

Proper PDF

Bleed open at a minimum of 1/8

(1/4 is recommended for a soft binding of more than 80 pages)

Trim marks with a minimum offset of 18 pts.