Sign a PDF on iPhone
Signing a PDF on an iPhone usually means hunting for the markup pen buried in the Files app, or installing a signing app that wants an account and a subscription before it will let you draw a line. FixTools works differently. Open the tool in Safari, upload the PDF from your phone, and a signature pad appears right on the page. You draw your signature with a fingertip, drop it wherever it needs to go, and tap download to save the signed file back to your device. Because the tool runs entirely in the browser, the PDF is opened and edited on the phone itself. Nothing is uploaded to a server, there is no account to create, and no watermark is stamped on the result. It works the same in Safari and Chrome on iOS, and the finished file lands straight in your Files or Downloads.
- Cost
- Free tier
- Sign-up
- Not required
- Processing
- Tool-specific
- Privacy
- Clearly disclosed
Draw your signature with a fingertip on the touchscreen
Runs in Safari and Chrome on iOS, nothing to install
The PDF never leaves your iPhone
PDF Tool
Sign PDF
Open the tool to see its processing method, supported formats, and current limits.
🚀Open Sign PDFFree tier · No account · Limits shown before processing
Why signing in the browser is safer than a signing app
Most mobile signing apps upload your document to their servers to render and process it, which means a contract, lease, or medical form passes through a company you have never heard of. For a signature, that is a lot of trust to hand over for a task the phone can do on its own.
FixTools embeds your signature into the PDF using JavaScript that runs inside Safari. The file is read into the browser, the signature image is drawn onto the page, and the new PDF is handed back to you, all without a single network request carrying your document. If you turn on airplane mode after the page loads, the signing still works, which is the simplest proof that nothing is being sent anywhere.
How to use this tool
Open the Sign PDF tool in Safari, tap to upload your PDF, and draw your signature in the pad. Drag it onto the signature line, then tap Download to save the signed PDF to your iPhone.
How It Works
Step-by-step guide to sign a pdf on iphone:
- 1
Open the tool in Safari
Tap the link to launch the FixTools Sign PDF tool. It loads as a normal web page, so there is no app to download.
- 2
Upload your PDF
Tap the upload area and pick the PDF from Files, iCloud Drive, or a recent email attachment saved to your phone.
- 3
Draw your signature
Sign with your fingertip in the signature pad that appears. Redo it as many times as you like until it looks right.
- 4
Place it on the page
Drag the signature onto the signature line and resize it so it sits cleanly where it belongs.
- 5
Download the signed PDF
Tap Download. The signed file saves back to your iPhone with no watermark and no upload.
Real-world examples
Common situations where this approach makes a real difference:
Signing on the go
A tenant receives a lease amendment by email while out of the house and needs to return it signed within the hour, with only an iPhone to hand.
No laptop nearby
A freelancer approves a statement of work from the couch, drawing the signature on the phone instead of finding a printer and scanner.
Sensitive document
A patient signs a consent form and prefers that the file stay on the phone rather than pass through a third-party app.
Quick internal sign-off
A manager signs an expense approval between meetings and emails it straight back from the phone.
Pro tips
Get better results with these expert suggestions:
Zoom in before you sign
Pinch to zoom on the signature line first, so you can place the signature precisely on a small form field.
Turn the phone sideways
Signing in landscape gives your finger more room and usually produces a cleaner signature.
Save a clean version first
Keep the original unsigned PDF in Files so you can re-sign if you place the signature in the wrong spot.
Flatten before sending
The downloaded file already has the signature embedded as part of the page, so it looks the same on every device you send it to.
Frequently asked questions
Related guides
More use-case guides for the same tool:
Related tools
Other tools you might find useful:
PDF Compressor
Shrink the signed PDF before emailing it.
PDF Merger
Combine the signed page back into the full document.
Watermark PDF
Stamp the document as signed or confidential.
Sign a PDF Without Printing
Sign a PDF without printing and scanning. Draw your signature in the browser, place it on the page, and download, keeping the document digital and the file on your device.
Sign a PDF on Android
Sign a PDF on Android in Chrome for free. Draw your signature with a finger, place it on the page, and download. No app to install and the file never leaves your phone.
Add a Signature to a PDF, Free
Add your signature to a PDF for free with no account and no watermark. Draw it in the browser and download the signed file. The document never leaves your device.
Sign a Contract in PDF Form
Sign a contract in PDF form online and free. Draw your signature, place it on the agreement, and download. The contract never leaves your browser and no watermark is added.
Sign a PDF Without Adobe
Sign a PDF without Adobe Acrobat or an account. Draw your signature in the browser and download the signed file free. No install, no upload, no watermark.
Draw Your Signature on a PDF
Draw your signature directly onto a PDF with a mouse, trackpad, or finger. Place it on the page and download free. Nothing is uploaded and no watermark is added.
Ready to get started?
Open Sign PDF to review its free limits and processing method.
Open Sign PDF →Free tier · No account needed · Transparent limits