Sign a PDF
Draw, type or upload your signature, add initials and the date, then download the signed PDF. Everything happens on your device.
Drop the PDF you need to sign
or pick a file from your device
Opening your PDF…
This happens in your browser — larger files take a few seconds.
Create your signature
Sign on white paper, take a photo, and upload it. We cut out the white background for you.
Your PDF is ready
Download it below. Nothing was sent to a server.
Continue with this file
How to sign a PDF with FormFlow
- Open the PDF. Drop it on the box above or tap Choose PDF. The file is read by your browser; it is not uploaded.
- Create your signature. Tap Signature. Draw it with your finger, stylus or mouse, type your name and pick a handwriting style, or upload a photo of your signature on white paper.
- Put it in place. The signature lands on the page you are looking at. Drag it onto the signature line and use the pink corner dot to make it larger or smaller.
- Add initials and a date. Many leases and consent forms ask for initials on every page and a signing date. Date inserts today's date; pick the format the form expects.
- Download. Tap Finish & download. You get a new PDF with your signature drawn onto the page, ready to email, upload to a portal or print.
When more than one person needs to sign on the same device — two tenants on a lease, a parent and a student on a permission slip — add a second signer. Each signer's items get their own outline color, so it is easy to check that everyone signed in the right place before you download.
Examples
- Apartment lease: initials at the bottom of pages 1–5, a full signature and date on page 6, for two tenants.
- School permission slip: a parent's typed signature, a checkmark next to "I give permission", and today's date.
- Contractor agreement: upload a photo of your wet-ink signature once, tick "Remember on this device", and reuse it next time.
About electronic signatures in the US
The federal Electronic Signatures in Global and National Commerce Act (ESIGN), 15 U.S.C. § 7001, and the Uniform Electronic Transactions Act (UETA) adopted by most states give electronic signatures the same general standing as handwritten ones for many transactions. Some documents — wills, certain court and family-law papers, some notices — are excluded or have extra rules. FormFlow places an image of your signature on the PDF; it does not verify identity, add a digital certificate, or keep an audit trail. If you need those, use a dedicated e-signature service. This page is general information, not legal advice.
Questions people ask
Is a signature made with FormFlow legally valid?
In the United States, the federal ESIGN Act and the state UETA laws generally say a signature cannot be refused just because it is electronic. Whether a particular document can be signed electronically, and what proof you may need later, depends on the document and who receives it. FormFlow places your signature image on the PDF; it does not add a certificate or an audit trail. This is general information, not legal advice.
Can two people sign the same PDF on one phone?
Yes. Add a second signer in the Signers box, hand the phone over, and they add their own signature, initials and date. Each signer gets a different outline color so you can see who placed what before you download.
Where is my signature stored?
Nowhere, unless you tick "Remember on this device". Then it is kept in this browser's local storage on your own device so you can reuse it next time. You can remove saved signatures at any time with "Forget saved signatures".
Does signing work on iPhone and Android?
Yes. The drawing pad follows your finger or stylus, items can be dragged with one finger, and the pink dot in the corner resizes them. Page scrolling still works when you touch the page outside your items.
Can I sign a PDF that is password-protected?
Not directly. If the PDF has an open password or edit restrictions, save an unprotected copy from your PDF reader first, then sign that copy.