How to Insert a Watermark in a PDF File. Watermarks are images or text displayed over the top of or underneath content in your PDF files to indicate information such as who owns the document, who ...

Need to edit a PDF document but don’t want to pay for the more expensive Adobe editors? You can add text to and sign a PDF with just the free Reader program.

This can be useful, for example, to collect all the invoices from a company in one file, merge two files to be printed together, or insert a scanned copy of a signed contract into the original PDF.

Learn how to add page numbers to PDF files using free online tools or PC software. You can set position, font, etc., for page numbering.

Learn how to embed insert a PDF File in an Excel sheet in an easy way. Inserted PDF Files can be sorted, filtered and hidden along with cells ...

If you need to edit PDF on iPhone in a hurry, you can do so without having to install any new app. Just use the native Files app. Let's show you how.