Mobile guide
How to Sign a PDF on Your Phone
DSign works in modern mobile browsers. The interface adapts to smaller screens so you can complete each stage in sequence.
Open the PDF signature toolPrepare the file on your phone
Save the PDF in an easy-to-find folder such as Downloads or Files. If it arrived through email or a messaging app, save it to the device before opening the browser file picker.
- Use a stable connection for upload and download.
- Close memory-intensive tabs on lower-memory devices.
- Rotate the screen if you need a wider preview.
Draw or upload a signature
Draw Signature lets you sign with your finger. If you already have a signature image, choose upload. DSign removes a near-white background to help the signature blend with the PDF.
After the signature is ready, choose a page and drag the box on the preview. Use browser zoom carefully so placement remains accurate.
Save the result
After processing, select Download PDF. The destination depends on your browser and is usually the Downloads folder. Open the result and check the signature before sharing it. If the download does not start, review browser download and pop-up permissions.