From Adobe Acrobat to free online editors and built-in tools, here’s how to merge multiple PDFs into one document.

Smallpdf is a solid online PDF editor for making basic changes to documents on the fly. Smallpdf is a free online PDF editor that offers a limited but useful set of editing and conversion tools.

Attackers using the Snake keylogger malware for Windows are emailing malicious PDFs with embedded Word documents to infect victims' PCs and steal information. Malicious PDFs are an unusual tool to use ...

Documents 7 is a free iOS app for reading PDF, EPUB, Word, and Excel documents, opening ZIP archives, viewing images, downloading and listening to music, watching videos, and much more. It took Apple ...

Swifdoo PDF is a full-featured, low-priced Acrobat alternative that should serve most users well. Swifdoo PDF doesn’t have the name recognition of some of the other editors in our PDF buying guide, ...

There are times when Acrobat Reader DC fails to open a PDF file and displays the following error message: Adobe Acrobat Reader could not open PDF because it is either ...