Question 1

What does a PDF preflight check for?

Accepted Answer

Printssistant's preflight verifies five things: bleeds (trim margins for print), color mode (CMYK vs. RGB), image resolution (300 DPI target), safe margins (content pulled back from the trim), and file size. Each check reports pass, warning, or fail.

Question 2

Is this PDF preflight tool free?

Accepted Answer

Yes. Anonymous users get 1 check per day, signed-in users get 5 per month, and Pro subscribers get unlimited checks. No install required — runs entirely in your browser.

Question 3

How do I share a preflight result with a designer or customer?

Accepted Answer

Every preflight result has a unique URL. Copy the URL after running a check and send it to the designer — they'll see the same pass/warning/fail report without having to run the file themselves.

Preflight.