MarquoSign a PDF Online
Open a PDF, draw or type your signature and place it on any page, add initials, a date or a line of text, then download the signed PDF. Free, no sign-up, and the file stays on your device.
- files sent to a server
- 0
- marks: signature, initials, text, date, check
- 5
- handwriting fonts for a typed signature
- 3
- on documents or pages
- No limit
The PDF and your signature are processed in your browser and are not uploaded anywhere.
This places an image of your signature: a simple electronic signature, not a certified digital signature.
Your signature
Sign here with a finger, mouse or stylus
- Draw a signature with a finger, mouse or stylus
- Type your name in a handwriting font
- Place a signature, initials, text, date and check mark
- Fill PDF form fields
- Flatten the result so it cannot be edited
How It Works
Open the PDF
Choose the file. Pages appear one under another, and form fields, if the PDF has them, can be typed into right on the page.
Add your signature
Tap Signature, draw it or type your name, then drag it into place and pull the corner to resize. Initials, text, date and check marks work the same way.
Download the signed PDF
Create the PDF and download it. Flatten is on by default, so the marks become part of the page.
What Kind of Signature This Is
The page puts an image of your signature on the PDF. That is a simple electronic signature: the same thing as signing on paper, scanning the page and sending it. It is not a certified or qualified digital signature with a certificate, and this page does not check who signed.
Whether a simple electronic signature is accepted is decided by whoever asked you to sign and by the rules that apply to the document. If you are not sure, ask them before you send it.
Flatten
With Flatten on, the signature, the text you added and any form fields become part of the page. Nobody can move your signature or change the values in a PDF reader afterwards. Turn it off only if someone still has to fill in the form after you.
This Page or the App
| This page | Marquo app | |
|---|---|---|
| Signature | Kept until you close the tab | Saved on the iPhone, can be locked with Face ID |
| Documents | PDF, Word, DOC, RTF and photos of paper | |
| Your details | Typed each time | Saved name, address and other details |
| Where files come from | Files you choose here | Mail, Messages, Files and the Share menu |
| Price | Free | 1 signed document a day free, Pro for more |
Marquo 1.0 for iPhone and this page, October 2026.
Questions
Is my PDF uploaded
No. The PDF is opened by your browser, the signature is drawn in it, and the new PDF is made on your device.
Is my signature saved
No. It stays in the page memory while the tab is open and is not written to the browser storage or sent anywhere.
Is this a digital signature
It is an image of your signature placed on the page, a simple electronic signature. It does not contain a certificate.
Can I sign on my phone
Yes. Draw with your finger in the signature box. Turning the phone sideways gives more room.
Sign the next document on your phone
Open the file from Mail, Messages or Files, add your signature and send back a flattened PDF. Everything stays on your iPhone.
iPhone, iOS 26 or later. 1 signed document a day free. Pro from $4.99 a week.