Fill & e-sign PDFs digitally

Known as the original creator of the PDF format, Adobe used to be the only reliable solution for electronically signing any kind of documentation - from contracts to tax forms and everything in between. Thankfully, you no longer need to own an expensive Acrobat license to get things done as PDF Extra includes all the essential PDF signature features you need right from the start.

As long as you're the only person looking to attach a signature to a PDF, removing an electronic signature from your document is as simple as right-clicking it and choosing “Delete” from the list of available options. You can also remove digital signatures by opening the dedicated signatures panel and removing them from there. Please note that for security reasons, you won't be able to remove someone else's signature - just your own.

Editing a signed PDF is possible as long as you make the changes before saving the document. Once the document is saved, any e-signature and filled-out content will become permanent as a security measure and you won't be able to erase it.

Whenever you’re filling out a W-8 form, a W-4 form, or any other kind of tax or non-tax form, PDF Extra will automatically convert all empty fields into editable rows so you can instantly type away your information without resorting to text boxes and other workarounds.

To enjoy the complete PDF form filler & signing experience on mobile, you'll need a paid PDF Extra license. Discover which version is right for you on our pricing page.

An electronic signature in a PDF is a simple, often informal way to sign digital documents, like typing your name or clicking an "I agree" button. A digital signature, however, is more secure and complex, using special encryption to verify that a document hasn't been changed and to confirm the signer's identity. Note that PDF Extra supports both types of signatures.