Dangerzone
Dangerzone – Convert PDF files, office documents or images to safe PDF files. Free and open source program
Unrud Scans to PDF
Unrud Scans to PDF – create small searchable PDF files from scanned documents. A free and open source program
Paper Clip
Paper Clip is a simple application for editing the basic metadata of a PDF document. A free and open source program
NightPDF
NightPDF is an application that allows you to read PDF files in dark mode. Free and open source program
Qpdf Tools
Qpdf Tools is a free and open source, easy-to-use Qt interface for Ghostscript and Stapler
Vector Slicer
Vector Slicer is a free and open source simple application for exporting SVG parts as individual pages to a multi-page PDF file.
Master PDF Editor
Master PDF Editor is a free and multi-platform, easy-to-use, but powerful and multifunctional program for working with PDF documents
PDF Slicer
PDF Slicer is a free and open source, simple program for editing PDF documents
Xournal++
Xournal++ is a free and open source, cross-platform program for creating handwritten notes and annotations in PDF documents
PDF Quirk
PDF Quirk is a simple free and open source software for easily creating PDF files from scanned documents or images