Signing a PDF used to mean printing it out, signing with a pen, then scanning it back in. Nobody has time for that anymore. The good news is you can sign a PDF digitally for free, without downloading any paid software, using just your browser and a couple of free tools.

Here's the quick version first, then we'll walk through each step in more detail below.

The Quick Version

  1. Download the PDF file
  2. Go to convert.io
  3. Upload the PDF and convert it to DOCX
  4. Download the DOCX file
  5. Open the DOCX file
  6. Insert your signature as an image
  7. Set the text wrap to "In Front of Text"
  8. Drag the signature image into place
  9. Save the DOCX, then go back to convert.io
  10. Upload the DOCX and convert it back to PDF
  11. Save the finished file

That's really all there is to it. If you want a breakdown of why each step matters and where people usually get stuck, keep reading.

Step 1: Turn Your PDF Into an Editable Word File

PDFs aren't really built to be edited, which is exactly why they're hard to sign directly in the first place. The workaround is to temporarily turn the PDF into a Word document so you can actually insert something into it.

Start by downloading the PDF you need to sign, so it's saved somewhere on your computer. Then head over to convert.io, a free online tool that converts files between formats. Upload your PDF there and choose to convert it into a DOCX file, which is the standard Word format. Once the conversion finishes, download the new DOCX file to your computer.

Step 2: Open the Document

Once the DOCX file is downloaded, open it in Word (or whatever program you use to edit Word files). At this point it should look almost exactly like your original PDF, just editable now.

Step 3: Add Your Signature

This is the part most people get stuck on, so it's worth doing right.

You'll need your signature saved as an image file with the background already removed, so it looks clean when it's placed on the page instead of showing up as a white box. If you don't have a signature image yet, click here to learn how to make an electronic signature for free.

Once you have your signature image ready, insert it into the document like you would any picture. Then find the text wrapping option and set it to "In Front of Text." This step matters more than it seems, because without it, your signature can shift the rest of the text around or get stuck behind it instead of sitting on top where it belongs.

With the wrapping set correctly, drag the signature image to wherever it needs to go on the page, usually right on top of the signature line.

Step 4: Convert It Back to PDF

Once your signature is placed where you want it, save the DOCX file.

Now go back to convert.io one more time. This time, upload the DOCX version of your document and convert it back into a PDF. Download the finished file, and save it wherever you keep your important documents.

And that's it. You now have a signed PDF, without printing a single page or paying for any software.

A Few Tips to Keep in Mind

  • Always double check your signature placement before converting back to PDF. Once it's a PDF again, it's much harder to adjust.

  • Keep a saved copy of your signature image somewhere easy to find, since you'll likely need to sign more documents down the road.

  • If the converted DOCX looks a little off from the original PDF formatting, that's normal. Minor formatting shifts can happen during conversion, but it usually won't affect the final signed PDF.

Signing documents online doesn't have to involve expensive software or complicated steps. With a free conversion tool and a saved signature image, you can get it done in just a few minutes, right from your browser.