Sign PDF
Draw, type or upload your signature and place it.
Free tool · on your device
GUIDE · PDF
How to sign a PDF on your phone without printing
Open the free Sign PDF tool in your phone’s browser, add the document and draw your signature with a finger (or type it, or upload a photo of your paper signature). Tap the page where it goes, adjust the size, choose this page, the last one or every page, and press “Sign PDF” to download it.
Open Sign PDFFree with an account, no subscription or watermark. Your files never leave your device.
STEP BY STEP
5 steps
Add the PDF
A PDF without a password, up to 100 MB, from your files (if it came by email, download it first).
Create your signature
Under “Your signature”, choose Draw (with your finger), Type (your name in handwriting-style lettering) or Upload image. Black or blue.
Place it
Tap the page where the signature goes and drag it to adjust. Change its size and choose “This page”, “The last page” or “Every page”.
Sign and download
Press “Sign PDF”, download the document and send it. If it is too large for email, shrink it with Compress PDF.
TOOLS IN THIS GUIDE
What you will use
JPG and images to PDF
Combine JPG, PNG or WebP into one PDF.
Free tool · on your device
Compress PDF
Smaller PDFs with photos or scans.
Free tool · on your device
TIPS
To get it right
Tip 1
Sign slowly with your index finger; if you do not like it, press “Clear” and do it again.
Tip 2
If your signature is on paper, take a well-lit photo and upload it with the “Remove the white background (photo of a signature on paper)” box ticked.
Tip 3
If the document reached you as photos, put them into one PDF first with JPG to PDF.
Sign a PDF on your phone: common questions
Is it legally valid?
It is a visual signature: your signature as an image inside the PDF, like signing on paper and scanning it. Many private processes accept it, but it is not a qualified or advanced electronic signature with a certificate; if a process requires one, use the official service they point you to.
Does it work on iPhone and Android?
Yes, in current mobile browsers (Safari, Chrome and others). There is no app to install.
Is my signature stored?
No. The signature and the PDF are processed in your browser and are not sent to or stored on any server; they disappear when you close the page.
Is it free?
Yes. The free tools in this guide run in your browser and add no watermark. Tools that create files come with 30 welcome uses on a free account, then cost 1 credit per use; tools that show the result on screen have no usage cap. You can try them before signing up; to download the result or keep using them we ask for a free account, with no subscription.