The PDF format is meant to be non-editable, but if you scan a document that comes out too light or receive a contract with type that is too faint to read, you need a way to darken a PDF. Here are a ...

PDFs have become quite a staple in our digital lives, and it's likely that you use them more often than you realize. Perhaps you're a student doing research for multiple school projects, or possibly ...

PDF files have become ubiquitous in our multi-platform world. This convenient file format makes it possible to view and share documents across various devices using various operating systems and ...

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, ...