Web utility ExpressPDF converts your web page, Microsoft Word document, or Excel document to PDF for free. Just upload your document or enter in the web page you'd like convert, enter your email ...

Use these free online document comparison tools to identify the differences between two versions of DOC, DOCX, RTF, PDF, PPT, PPTX, etc, files.

The first one is you may have installed a buggy update — either for Google Chrome or Microsoft Windows — that automatically switched all your PDF documents to Chrome HTML files.

The best PDF editors allow you to edit, create, alter, and convert PDF files just like you would with any other text document. Adobe Acrobat is the most well-known option for most people.