Draw your signature with a finger, mouse or stylus, or type your name in a handwriting font. Drag it onto the signature line, size it, and download the signed PDF.
No limits or paywall.
Use instantly, no account.
Processed inside your browser.
Clean, full-quality output.
No upload queue or waiting.
Works on phone and desktop.
Printing a document just to sign it, scanning it and emailing it back takes ten minutes and a printer. Signing the PDF directly takes about one. This free tool lets you draw your signature with a finger, stylus or mouse, or type it in a handwriting-style font, then drag it onto the signature line of any page and download the signed file.
Everything happens in your browser. The PDF is not uploaded, there is no account to create and no watermark is added. The original document is kept intact: its text stays searchable, links keep working and fillable form fields remain fillable, so you can sign tax forms, rental agreements, consent letters and HR paperwork without changing anything else.
Before
IRS Form W-9 (6 pages)
138 KB
An unsigned form with 23 fillable fields, waiting for a signature on page 1.
After
Signed W-9
≈ 150 KB
Signature placed on the line; all 23 fields, the text and the layout are unchanged.
Measured on the official IRS Form W-9 PDF in Chrome. The size grows only by the signature image you add (typically 5–20 KB).
Drop the PDF into the editor at the top of the page or tap to choose it (up to 60 MB). The signature pad opens as soon as the document has loaded.
On the Draw tab, sign with your finger, stylus or mouse. Or switch to Type and enter your name. Press Place Signature.
Drag the signature onto the signature line. Use the Size slider above the page to make it larger or smaller; the shape never stretches. Repeat on other pages if needed.
Press Export PDF, check the file name and download. The original text, links and fillable fields stay as they were.
| Method | How it works | Best for |
|---|---|---|
| Draw | Sign on the pad with a finger, stylus or mouse; empty space around the ink is trimmed | A signature that looks like yours on paper |
| Type | Type your name; it is set in a handwriting-style font at any length | Quick approvals and laptops without a touchscreen |
| Saved | Reuse a signature you made before; it is stored only in this browser | Signing several documents in a row |
| Stamp | APPROVED, FINAL, CONFIDENTIAL and other boxed labels | Reviewing, approving or marking drafts |
A PDF page is a set of drawing instructions: text in specific fonts, vector lines and embedded images. When you sign, the editor adds one more instruction to the page: draw this image here, at this size. Your signature is stored as a transparent PNG, so only the ink is visible and the form underneath shows through around it.
Before it is placed, a drawn signature is trimmed to the ink with a small margin, so it lines up neatly and scales predictably. It starts at up to 180 points wide (about 6.3 cm), a typical size for a signature line, and the Size slider changes it from 24 to 600 points without ever stretching it. Typed signatures are measured first, so long names are never clipped.
The rest of the file is not rebuilt. The editor opens the original PDF, adds your signature to the pages you signed and saves it, which is why bookmarks, hyperlinks and fillable form fields come through unchanged. On the official IRS Form W-9, all 23 fields were still fillable after signing, and on the four-page USCIS Form I-9 all 128 were.
These two terms are often used interchangeably, but they are different things, and it matters which one a recipient asks for.
The drawing pad is twice the resolution of its on-screen size, so strokes stay smooth when the signature is enlarged or printed. A few habits make the result look natural:
A new signature appears in the middle of the part of the page you are looking at, already selected. Drag it so that the bottom of the ink sits just above the signature line, as it would on paper. If the page is larger than your screen, scroll to the line first and then add the signature, so it appears right where you need it.
What you see is what you get. The editor maps each position from the screen to the page, including pages that are stored sideways in the file, as scanners often do. We tested rotated pages (90°, 180° and 270°) and pages whose box does not start at the corner, and the signature landed at exactly the same spot in the downloaded PDF as on screen.
To sign several pages, go to each page with the thumbnails or the Prev and Next buttons and choose your saved signature again. Use the Text tool to add the date or your printed name next to it.
The documents people sign are often the most sensitive files they own: tax forms with ID numbers, employment contracts, medical consent forms, bank mandates. Many online signing services upload the file to their servers to process it. This tool does not. PDF.js renders the pages and pdf-lib writes the result, both running inside your browser tab.
Two things are stored on your device, and only there: signatures you create, so you can reuse them, and an autosave of the document you are working on, so a crashed tab can be restored. You can discard the autosave when you return and delete saved signatures from the Saved tab.
Most PDFs open and sign straight away. A few kinds need a step first:
Sign a W-9, W-4, I-9, Form 16 acknowledgement or joining form and send it back the same day.
Add your signature to every page that needs one, then your initials with a smaller copy of the signature.
Sign permission slips and consent forms from your phone, without a printer.
Sign invoices and purchase orders, or add an APPROVED stamp before forwarding them.
Open the PDF in the editor above, draw or type your signature, drag it onto the line and press Export PDF. There is no account, watermark or page limit.
Yes. On Android and iPhone you can draw your signature with your finger, tap to place it and drag it into position. The thumbnails panel starts hidden on small screens so the page uses the full width.
No. The PDF is opened by PDF.js and saved by pdf-lib inside your browser. The file, your signature and the result never leave your device. Signatures you make are remembered only in this browser so you can reuse them; you can delete them from the Saved tab.
It adds an electronic signature: an image of your signature on the page. Many organisations accept that for forms, letters and agreements, but it is not a certificate-based digital signature that cryptographically proves who signed and that nothing changed afterwards. If a recipient or a law requires a certificate signature (for example Aadhaar eSign or a DSC token for Indian government filings), use that service instead.
Yes. The editor changes the PDF in place, so fillable fields, bookmarks and links survive. We checked this with the IRS W-9 (23 fields) and the USCIS I-9 (128 fields). Fill the fields in your PDF reader before or after signing.
Signatures are placed at up to 180 points wide, a typical size for a form line. Make it bigger with the Size slider instead of zooming the page. Drawn signatures are captured on a high-resolution pad, so they stay sharp when printed.
No. Encrypted PDFs (protected with a password or with permission restrictions) cannot be changed here, and the editor tells you as soon as you open one. Remove the protection in the app that created the file, then sign it.
Yes. Choose the Text tool, click next to the signature and type. See the Add Text to PDF page for fonts, sizes and colours.
No. The original pages are kept as they are, including their vector text, which stays searchable. The signature is added on top, and only the pages you sign change.