pdf24 sign PDF: draw, type or upload your signature, free

Yes. Signing on pdf24tools costs nothing, needs no account and adds no watermark. The work runs in your own browser, so there is no server cost and no daily limit: you can sign one file after another in the same tab, and your signature stays ready while the page is open.

No. The browser reads the PDF from your device and writes the signed copy locally; the result line in our test showed 0 bytes uploaded. Your signature image also stays in the tab. Typed signatures load 3 script fonts from Google Fonts, but no part of your document or name is sent.

It is a simple electronic signature. Laws such as the US ESIGN Act and the EU eIDAS Regulation give electronic signatures legal effect, and simple ones are widely accepted for everyday agreements. Some documents need an advanced or qualified signature with a certificate, so check with the receiver for important contracts.

Yes. Open the page in Safari or Chrome, pick the PDF from Files, sign with your finger in the Draw pad and tap the signature line. Turning the phone sideways gives a wider pad. The signed copy is saved to Files, from where you can mail or message it.

Yes. Chrome, Samsung Internet, Edge and Firefox on Android all work. Choose the file, draw with your finger, tap Use this signature and tap the page where it goes. The -signed.pdf file appears in Downloads and can be shared straight from the download notification.

No. It places a visible signature image, which is an electronic signature but not a certificate-based digital signature. A certificate signature adds a cryptographic seal that proves the file was not changed. You need a certificate from a trust provider or a national ID card for that.

Open the Type tab, write your name (up to 60 characters) and pick one of 3 script fonts: Dancing Script, Caveat or Great Vibes. Choose black, blue or red ink, press Use this signature and click on the page. The typed name is placed as a sharp, transparent image.

Yes. The Upload tab takes PNG, JPEG or WebP files. Remove white background is on by default: light pixels become transparent, so the signature sits on the line without a white box. Crop the photo close to the ink and use a dark pen for the cleanest result.

Yes. Press Initials, create them by drawing, typing or uploading, and click on every page where they are required. The initials are stored separately from the full signature and placed at about 10 % of the page width, so you can switch between the two without redrawing.

Press Date and click where it belongs: today's date is inserted in your browser's date format at 12 pt. Click the text to change it if the document asks for another format or another day. The date is real text, so it stays selectable in the signed file.

Yes. The signature panel offers black, blue and red ink. Blue is common on contracts because it shows that a printed copy was signed, not photocopied, while black prints most clearly. The colour applies to drawn and typed signatures; uploaded images keep their own colours.

Yes. Drag the placed signature to move it and pull its corner handle to resize it; the proportions are kept, so it never stretches. Select it and remove it to start over. Nothing is written into the file until you press Sign.

No. The signature is kept only while the page is open, so you can place it on several pages or files in one session. Closing the tab deletes it. For a reusable signature, save a PNG of your signature on your device and upload it each time.

Yes, one after the other. The first signer signs and sends the -signed.pdf file, and the second signer opens that copy, adds their signature and saves again. Each signature is created on the signer's own device, and no shared online copy is involved.

Yes. The pages are not converted to images: the signature is drawn on top of the existing content, and all original text, links and form fields stay as they were. In our test the invoice text was still selectable and searchable after signing.

Only by the signature image. Our 2-page invoice grew from 2.4 KB to 7.5 KB with one drawn signature. Placing the same signature on many pages reuses the stored image, so a contract with initials on every page grows only slightly more than a single signature.

Usually the original file was opened instead of the signed download. Look for the file ending in -signed.pdf. If the signature is missing there too, it was probably created but not placed on a page: create it, then click on the page before pressing Sign.

Not directly when it needs a password to open. An encrypted file must be unlocked first with Unlock PDF, which needs the password. Sign the unlocked copy, then add protection again with Lock PDF if the document must stay restricted. Files with only an owner password (printing or copying limits) are signed and saved directly, and the signed copy no longer carries those limits.

The page and the PDF engine load once over the internet; after that, drawing and placing the signature run on your device. Typed signatures need the script fonts, which also load once. Without any connection at the start, the page cannot load, because no app is installed.

Yes. A scanned page is a picture inside the PDF, and the signature is placed on top of it like on any page. If the scan is very large, signing still works, but a phone may be slow; compress the scan first for faster opening.

The signing page adds text with the Text and Date buttons, which is enough for a name and a place. For real form fields with boxes and drop-downs, fill them first with Fill out PDF, then sign the filled copy on this page.

For many everyday documents a typed name in a script font is accepted as an electronic signature, because what counts is the intent to sign. Some receivers prefer a drawn signature that matches your paper one. If you are unsure, use Draw or Upload.

No. The signed copy contains your pages and the items you placed: signature, initials, date and text. There is no watermark, footer or branding. If you need a mark such as SIGNED COPY across the pages, the Add watermark tool does that separately.

pdf24 sign PDF runs in current Chrome, Edge, Firefox and Safari on Windows, macOS, Linux, Android, iPhone and iPad, with no plug-in or app. Drawing uses pointer events, so a mouse, trackpad, stylus and finger all work. We ran our test in Chrome on a Windows laptop.

One file is signed at a time, but the signature stays ready while the page is open. Open the next file, click on the page and press Sign again; you do not need to redraw. To sign one combined document, join the files first with Merge PDF.

After saving, the signature is part of the page and cannot be lifted off cleanly. Keep the unsigned original so you can start again. Before saving, select the signature on the page and remove it, or simply drag it to the right place.

That message appears when the original PDF already carried a certificate signature from someone else. Any added content changes the file after that seal, and readers report it. Add your visible signature before the certificate signature is applied, or ask the other party to sign last.

Yes. Click inside the box and resize the signature to fit; the editor maps your click to exact page coordinates, so the signature lands where you see it, also on rotated or landscape pages. Signature form fields themselves are not filled, the image is placed over them.

The pdf24tools team makes it. pdf24tools is an independent website and is not affiliated with PDF24 or Geek Software GmbH. Our signing tool was built separately and runs entirely in your browser; this page describes only what our tool does, measured with our own test files.

A signature roughly 4 to 6 cm wide on an A4 or Letter page looks natural; the default of about 24 % of the page width is close to 5 cm on A4. Initials start at about 10 %. Resize by the corner handle until it fits the line.

Yes. Apple Pencil, Surface Pen, S Pen and other styluses work in the Draw pad, because it listens to pointer events. Strokes are smoothed with curves and drawn 5 pixels wide on the 900 × 300 pad, which gives a pen-like line when placed on the page.

Convert it first, because pdf24 sign PDF accepts PDF files only: Word to PDF turns a .docx file into a PDF in your browser, and you can sign that PDF here. The signed result is a PDF, which is the format most receivers expect for signed documents anyway.

It exists in the open tab as a small image and in the signed file you downloaded. Nothing is kept on a server. When you close or reload the tab, the signature in the page memory is gone; the copy inside your signed PDF is the only one left.