@lwpembleton

If you mean actual PDF editing (without the need to import from or export to PDF), then there is only one open source project:
#PDF4QT https://flathub.org/apps/io.github.JakubMelka.Pdf4qt
This is an actual PDF editor. For smaller tasks, there are several apps for reading, highlighting, marking, commenting, reshuffling of pages etc.

If you also consider a #PDFEditor which is not open source, then there is #Qoppa #PDFStudio . It is very comprehensive and similarly powerful as Acrobat: https://www.qoppa.com/pdfstudio/

@ebassi I don't know if the "process is not responding" dialog works the same on all #Linux distributions, but on #Ubuntu it just appears too often (many applications and situations) and too frequently (click on ok and 1 second later it pops up again). Do you know if one can set the sensitivity much lower or if one can disable it at all?

P.S. I see the dialog very often with #Thunderbird #LibreOffice #Firefox #Chromium #RStudio #Stata #Gnome preferences #Geany #PDFStudio
@DaAnda @monster

@itsfoss

1st: Have a look at cross-platform applications that are available on the current platform and Linux, and see if they are good for you (e.g. #LibreOffice, #Zotero, #Firefox, #Thunderbird, #Qoppa #PDFStudio, ...)

2nd: Is your computer/notebook and your printer etc. well supported by #Linux? Check the internet for it.

3rd: After switching: Look first for software in the distribution repositories and not on the websites of the projects. Install it from the distribution if available.