What does overprint fill do?
You can use overprinting to prevent knockout and make the topmost overlapping printing ink appear transparent in relation to the underlying ink. Because black ink is opaque (and usually the last to be printed), it doesn’t look much different when printed over a color as opposed to a white background.
How do you know if a PDF is overprint?
Overprint Preview
- Acrobat Reader/Standard x/Pro. On a PC: Go to Edit > Preferences.
- On a Mac: Go to Acrobat > Preferences > Page Display.
- Additional Tools in Acrobat Pro: Go to View > Tools > Print Production.
What is overprint white?
White Overprinting: White overprinting is primarily used when printing on transfer paper where the image is mirrored and will be heat pressed onto textiles or hard surfaces. In this case, the color image is printed first, and then the white layer is printed over the color image.
Why do I get black overprint on my Word document?
It’s due to a longstanding InDesign bug that can easily ruin a print job if you’re not careful. Here’s how it happens. Create a paragraph style, set the text color to Black (or any other color), and turn on the Overprint Fill checkbox in the Character Color pane of the paragraph styles dialog box.
Why is there a white box behind the transparency effect?
Instead, a white box appears behind the transparency effect. When you probe into how the transparency effect was created, there is usually one common element: The designer is applying the transparency effect so it interacts with spot colors. The illustration below shows text with a drop shadow placed over a blue frame.
Is there a way to eliminate the white box effect?
If you’re sending your file to a print service provider, be sure to tell them to turn on overprinting on their RIP when printing your job. Many service providers by default have this option turned off, but to print with spot colors and transparency, it must be turned on. This is the only way you’ll eliminate the white boxes!
How can I fix the overprint fill checkbox?
The only solution is to edit the paragraph style, change the Character Color to something other than Paper, turn off the Overprint Fill checkbox manually, then set the color back to Paper. Fortunately, the Preflight panel can find these errors easily. You have to make a custom preflight profile that checks for overprinting of white or [Paper]: