1.Stirling-Tools / Stirling-PDF#1 PDF Application on GitHub that lets you edit PDFs on any device anywheredockerjavapdfpdf-converterpdf-manipulationpdf-merger+7 moreTypeScriptOther license96K total10K forks+524 starsfrom 94,997 · score 6.26
2.24eme / signaturepdfFree open-source web software for signing PDF (alone or with others) and also organize pages, edit metadata and compress pdfpdfsignaturepdf-signpdf-signaturepdf-signerphp+13 moreJavaScriptAGPL-3.0832 total113 forks+1 starsfrom 830 · score 0.69