Similar to Adobe Acrobat, open-source PDF editors come with different tools for altering PDF files, from adding text to merging pages. Some of them are readily available on all major desktop ...

If, however, you're still happy using open-source PDF editors despite these disadvantages, here are six options you can try. ONLYOFFICE is both a PDF editor and viewer. Marinel Sigue/SlashGear.

Here are five free PDF editors for you to easily edit your PDF files both online and offline. ... open-source, vector graphic and image editing application that can also help you edit PDF files.