My pre-flight verifier has dozens of messages with the text "Image has progressive encoding". I know what progressive encoding is, so:
1. Why is it a bad thing in Scribus? Ignoring them doesn't seem to have any bad effect on the PDF or the printed document.
2. Since I routinely ignore those messages, can I suppress them?
[1.7.1svn on Linux Mint (Ubuntu)]
hi henrylaw
you'll find those settings under 'preferences' → 'preflight verifier'. here you can define a profile for every .pdf version.
utnik
That setting is not selected in document setup or preferences, yet it still displays the error message.
Scribus 1.7.1 appimage on Ubuntu 20.04
hi henrylaw
are you sure you checked the same profile in the settings as when you exported your document? it may be different for every .pdf version.
(on my computer it's unchecked for all versions and it never shows up as a warning...)
utnik
Quote from: utnik on May 20, 2026, 05:50:27 PMhi henrylaw
you'll find those settings under 'preferences' → 'preflight verifier'. here you can define a profile for every .pdf version.
utnik
I'm embarrassed that I missed that. What a rookie error. Thank you.
Sorry to come back on this after so long, but I've been putting up with this annoyance because of other issues.
This option "Check for images with progressive encoding" is unchecked for all preflight verifier profiles, and yet I still get the warning.
I've fixed this in 1.7.4.svn
Note there is risk of issues with progressive images when sending PDFs to professional printers