How Multiple People Can Sign a PDF with Signature PDF (pdf.24eme.fr)

Signature PDF lets several people sign the same document through a shared link. One person prepares the PDF, adds a signature field, and enables the multi-signer option; the others open the link, add their signatures, and the signed file is collected. No account is needed for the signers, and the tool is free, open-source software (AGPL-3.0). This works well for contracts, approval sheets, and any document that needs more than one signature but doesn't require a paid e-signature platform.

What you need before starting

• A PDF file you want signed.
• JavaScript enabled in your browser — the site states it is not functional without JavaScript.
• A way to send the shared link to the other signers (email, chat, etc.).
• Signers can be on any device with a browser; they don't need to install anything or register.

Step-by-step: setting up multi-person signing

1. Open the tool. Go to pdf.24eme.fr and choose the Sign section.
2. Load your PDF. Upload the document you want signed.
3. Add a signature field. Use Add a signature to place where the first signature goes. You can also add initials, a stamp, or typed text if the workflow needs them.
4. Enable multi-signer mode. Turn on the option described as "Allow multiple people to sign via a shared link." This is the setting that turns a single-signature document into a collaborative one.
5. Generate and share the link. The tool produces a link you send to the other signers. Each person opens it and adds their own signature in the designated area.
6. Collect the result. As signers complete their part, the signatures are added to the document. Once everyone has signed, you have a single PDF containing all signatures.

What each signer does

The signer's side is deliberately simple:

1. Open the shared link.
2. Add their signature (draw, type, or use the available signature options).
3. Confirm/place it in the field.
4. Done — no account, no login.

Because no account is required, the link itself is the access mechanism. Treat it like any other document-sharing link: send it only to the people who should sign.

Options that pair well with multi-signing

Signature PDF is more than a signature tool, so you can prepare the document before or after signing:

For a multi-signer workflow, Organize is useful if you need to merge supporting pages or fix page order before sending the link, and Compress helps if the final signed file is too large to email.

Common snags and how to handle them

• Nothing loads or buttons don't respond. The site requires JavaScript. Check that it's enabled and that no extension is blocking scripts.
• A signer can't add their signature. Confirm they opened the correct shared link and that multi-signer mode was actually enabled before the link was generated.
• You need a specific signing order. The description covers signing via a shared link but doesn't state that sequential ordering is enforced, so if order matters, coordinate it manually (send the link to the first signer, then the next).
• You need legal-grade identity verification. This is free open-source software, not a certified e-signature service with identity checks. For documents requiring verified identity or audit trails, use a dedicated e-signature provider instead.
• The file is too big to share. Run it through Compress first.

When to use this vs. another tool

Choose Signature PDF's shared-link signing when you want a free, no-account, browser-based way to collect several signatures on a PDF and you control distribution of the link. Choose a commercial e-signature platform when you need verified signer identity, enforced signing order, or formal audit certificates. The source code is available under AGPL-3.0 if you want to inspect or self-host it.