Sign a PDF online in a minute
Type, draw or upload your signature, place it on the document with your initials and the date, and download the signed PDF. No printing, no scanning, and nothing to install.
Free plan with no time limit. Pro free for 7 days, no card needed.
How to sign a PDF
Open the document
Upload the PDF you need to sign, or choose one you already have in PDFZyro.
Create your signature
Type your name in a handwriting style, draw it with your mouse, finger or pen, or upload a picture of it. Save it to reuse next time.
Place it and download
Click where it goes, add your initials and the date if needed, and download the signed PDF.
Everything you need to sign
Three ways to sign
Type, draw or upload your signature, and keep saved signatures and initials for the next document.
Sealed signed copies
The signed PDF is sealed with a digital signature, so any later change to the document can be detected.
Fill in at the same time
Fill in form fields or type on the page anywhere before you sign. Blank lines and boxes are found for you.
On any device
Sign on a computer, phone or tablet in your browser. Drawing with a finger works well on touch screens.
Need others to sign?
Send the document for e-signature instead: signers get an email link, and you get an audit trail and a certificate of completion.
Private by design
Encrypted and private
Every file is encrypted before it's stored, and only you and the people you share with can open it.
Your original stays safe
Every change is saved as a new version. The original is never changed, and you can restore it at any time.
No watermarks
Files you save never get a watermark, on any plan, including the free one.
Works in your browser
Nothing to install. Use it on Windows, Mac, Linux, Chromebooks, iPhone, iPad and Android.
Questions and answers
How do I sign a PDF for free?
Create a free PDFZyro account, open the PDF with Sign, create your signature by typing, drawing or uploading it, place it on the page and download. Signing your own documents isn't counted towards the Free plan's daily tasks.
Is an electronic signature legally binding?
In the United States, the ESIGN Act and UETA recognize electronic signatures for most documents, and many other countries have similar laws. Some documents, such as wills, can have special rules, so check if you're unsure.
Can I sign a PDF on my phone?
Yes. PDFZyro works in the browser on iPhone, iPad and Android, and you can draw your signature with your finger.
How do I get someone else to sign a PDF?
Use e-signature requests: add the signers' emails and where each one signs, and PDFZyro emails them a link. They don't need an account, and you get the sealed PDF with a certificate of completion.
Is Sign PDF free?
Yes. Sign PDF isn't counted towards the Free plan's daily tasks, so you can use it as much as you like with files up to 50 MB. Pro adds unlimited edit, convert, compress and OCR tasks and more storage, and is free to try for 7 days.
Related tools
Sign your next document without a printer
Create a free account in under a minute. No card needed, and no watermarks on anything you save.
Sign a PDF free