Print File Preflight Checklist
Don't risk a reprint. Walk through our professional 15-point inspection to ensure your artwork is 100% print-ready for GN Print's industrial presses.
Inspection Progress
0 of 15 items verified
Why it matters
RGB colors shift unpredictably when printed with ink.
How to fix
In InDesign/Illustrator, go to Edit > Color Settings or Document Color Mode.
Why it matters
Low-res images will appear blurry or pixelated in print.
How to fix
Check the Links panel in InDesign for 'Effective PPI' values.
Why it matters
Prevents thin white edges if the paper shifts during trimming.
How to fix
Set Bleed to 3mm in Document Setup and extend background artwork.
Why it matters
Keep text/logos 5mm away from the edge to avoid being cut into.
How to fix
Create a 5mm internal margin guide on your master pages.
Why it matters
Missing fonts will be substituted by the printer's system.
How to fix
Use File > Package in InDesign or Type > Create Outlines in Illustrator.
Why it matters
100% Black alone can look grey/washed out in large areas.
How to fix
Use C:60 M:40 Y:40 K:100 for solids, but 100% K for text.
Why it matters
Using four colors for tiny text risks blur (registration error).
How to fix
Select body text and set swatch to [Black], not Rich Black.
Why it matters
Unless using Pantone ink, spots must be CMYK for 4-color printing.
How to fix
In Swatches, change color type from 'Spot' to 'Process'.
Why it matters
Effects set in RGB may render incorrectly when output to press.
How to fix
Verify effect color settings are using the CMYK document space.
Why it matters
These are the ISO-standard press-ready PDF formats.
How to fix
Select the 'PDF/X-4:2010' preset in the Export PDF dialog.
Why it matters
These marks guide our cutting machines for absolute precision.
How to fix
In Export PDF > Marks and Bleeds, check 'Crop Marks' and 'Bleed Marks'.
Why it matters
An A4 brochure must be 210x297mm, not US Letter.
How to fix
Double-check your Document Setup dimensions before exporting.
Why it matters
White objects set to overprint will disappear completely.
How to fix
Check the Attributes panel for white elements.
Why it matters
If images aren't packaged, the PDF may contain low-res proxies.
How to fix
Always use File > Package to collect all assets.
Why it matters
Spelling errors are expensive to fix after the press runs.
How to fix
Print your PDF at 100% size on a home/office printer for a final check.
Still unsure about your file?
Our prepress team is available to review your artwork before you place an order. We catch the small details so you don't have to.
Talk to a Prepress Specialist →