If by editing you mean adding texts (forms) and signing, then Firefox, xournal++, rnote etc.
If you mean changing the pdf content, then libre office draw for textual pdf, inkscape for graphical pdf.
I also just open PDF in text editor (or with qpdf’s qdf format) and edit certain things. I don’t recommend it but due to certain recent events I had to change some font data from PDF and that was the best solution.
If by editing you mean adding texts (forms) and signing, then Firefox, xournal++, rnote etc.
If you mean changing the pdf content, then libre office draw for textual pdf, inkscape for graphical pdf.
I also just open PDF in text editor (or with qpdf’s qdf format) and edit certain things. I don’t recommend it but due to certain recent events I had to change some font data from PDF and that was the best solution.