How to Add a Signature Line to a PDF (Free, 2026)

A signature line is the "Sign here" block at the bottom of a contract or form, usually a horizontal line with a name, title, and date beneath it. Adding one tells the recipient exactly where and how to sign. PDF Zone's Edit PDF tool lets you add a signature line to any PDF right in your browser, with nothing uploaded.

This is different from signing a document yourself, here you're creating the space for a signature. Here's how to build a clean signature block, then sign it or send it out.

How to Add a Signature Line (Step by Step)

1. Open the Edit PDF tool and upload your PDF.
2. Use the line or shape tool to draw a horizontal line where the signature should go.
3. Add labels beneath it with the text tool, for example:
   • Signature
   • Name (printed)
   • Title
   • Date
4. Repeat for each person who needs to sign (add a second block for a countersignature).
5. Download the finished PDF.

Because everything runs on your device, even a confidential agreement never leaves your browser.

A Simple Signature Block Layout

A clear, professional block usually looks like this:

_______________________________
Signature

_______________________________
Name (printed)                 Date

Keep the lines long enough to write on, leave a little space above each line, and align the labels left. For two signers, stack two identical blocks or place them side by side.

Add a "Sign Here" Marker

To make it obvious where to sign, add a small "Sign here" text tag or an arrow next to the line using the text tool. This is especially helpful on multi-page documents where the signature line isn't on the last page.

Sign the Line Yourself

If you're the one signing, you don't need a printed line at all, you can drop a signature straight onto the page:

1. Open the Sign PDF tool.
2. Draw, type, or upload your signature.
3. Place it on the signature line and add the date.

See How to Create an Electronic Signature and How to Sign a PDF on Any Device for the full walkthrough.

Lock the Document Before Sending

Once your signature lines and any filled details are in place, prevent them from being moved:

• Flatten the PDF so the lines and labels become fixed content.
• Encrypt it with a password if the agreement is sensitive.

For a reusable form others will complete and sign repeatedly, see How to Make a Fillable PDF.

Frequently Asked Questions

How do I add a signature line to a PDF?

Open PDF Zone's Edit PDF tool, draw a horizontal line where the signature goes, then use the text tool to add labels like Signature, Name, and Date beneath it. Download the finished PDF, free and with no upload.

How do I add a signature and date line together?

Draw the line, then add "Signature" under the left side and "Date" under the right side using the text tool. Give each enough space to write on.

What's the difference between adding a signature line and signing a PDF?

A signature line is the blank space and labels that show where to sign. Signing is placing an actual signature on that line, use the Sign PDF tool for that.

How do I add a signature line for two people?

Add two identical blocks, each with its own line and labels, either stacked vertically or placed side by side, so each signer has a clearly marked space.

Can I add a "Sign here" marker?

Yes. Use the text tool to add a small "Sign here" tag or an arrow next to the line, helpful on long documents where the signature isn't on the last page.

How do I stop the signature line from moving?

Flatten the PDF after adding your lines and labels so they become fixed content that can't be dragged or edited.

Is it free to add a signature line to a PDF?

Yes. The Edit PDF tool is free, has no watermark, and runs entirely in your browser with no upload.

Can I add a signature line on my phone?

Yes. Open the Edit PDF tool in your mobile browser, draw the line, add labels, and download, no app needed.

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Related: Edit PDF · Create an Electronic Signature · Make a Fillable PDF