PDF editor

Free tools

Fill in and sign a PDF online

Open a PDF and fill it in right on the page: form fields fill with a tap, and on PDFs without fields you can write anywhere, tick boxes, add the date and sign with your finger. Name, address and IBAN come from your saved details. The document never leaves your computer: no uploads, no account.

How to fill in a PDF in three steps

  1. 1

    Open the PDF

    Drop it on the page or pick it from your computer or phone.

  2. 2

    Fill it in

    Tap the form fields, or choose Text, Tick, Date or Signature and tap the page.

  3. 3

    Download

    The filled PDF downloads at once. With "Lock fields" the fields can no longer be changed.

The document never leaves your computer

The PDF is opened and saved in your browser. The page sends no data to any server, not even to Lema: its security policy (CSP) prevents it too. Documents and signature stay in memory only and disappear when you close the page.

Frequently asked questions

Is the PDF uploaded to a server? +

No. The file is opened and saved in the browser, on your device. That is why you can also fill in forms with personal data, salaries or social security numbers without worry.

Can I edit the text already in the PDF? +

No: you can add text and cover existing text with a white box, but not rewrite it. To change the content you need the original document (Word or similar).

Does the white box really delete the text? +

It hides it on screen and in print, but the text underneath stays in the file and can be copied. Do not use it to redact confidential data before sending a document.

How do I sign a PDF? +

Choose "Signature", sign with your finger or the mouse and tap the page where the signature goes; you can move and resize it. It is a simple signature, not a qualified electronic signature.

Why do some forms not open? +

XFA forms (some older official forms) only work in Adobe Acrobat Reader, and PDFs protected by a password or against changes cannot be filled in. The tool tells you when you open them.

The tool is provided as is. Always check the downloaded PDF before sending it.

The Lema business software

When invoices pile up, there's Lema

The free tool is enough for a few invoices. Lema is the Swiss business software that brings everything else together: documents, due dates, payments, customers and bank, with an AI assistant that prepares the work for you.