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✍️ Compila PDF

Fill forms, tick checkboxes and sign your PDFs — no file ever leaves your device, 100% local processing

📂 Select a PDF to fill

Detects form fields, checkboxes and signature · Local

How to fill a PDF online

Upload a PDF: if it contains form fields (AcroForm), the tool detects them automatically — text boxes and checkboxes become immediately fillable by clicking on them. You can also draw a signature with your finger or mouse and drag it wherever you like, or add free text anywhere on the page. Everything happens in the browser with pdf-lib and PDF.js, with no upload.

No form fields in your PDF? Fill it manually

If the PDF is a scan or photo of a paper form, with no clickable fields, the tool switches to manual mode: click anywhere on the page to place text or a signature exactly where you need it, with full control over the result.

No upload: your PDF never leaves your device

Unlike many online form fillers that upload your document to a server, your PDF stays on your device from start to finish — ideal for forms with sensitive data, medical reports, or personal documents.

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When to use an online PDF form filler

This tool fills in PDF forms — with or without form fields — directly in your browser, adding text, checkboxes, and a signature without sending the document to a server.

When to use it

When NOT to use it

Alternatives

Common mistakes

Frequently asked questions about filling PDFs online

Yes. If the PDF doesn't contain form fields (AcroForm) — for example because it's a scan or a photo — the tool automatically switches to manual mode: click anywhere on the page to place text or a signature exactly where you need it.

You can draw a graphic signature with your finger or mouse and drag it to the desired spot on the document. This isn't a qualified electronic signature with legal value, but a visual signature, suitable for most non-legally-binding forms.

No. All processing happens in your browser via pdf-lib and PDF.js: your file never leaves your device, making it suitable even for documents with sensitive data like medical reports or contracts.

The result is a filled PDF, downloadable directly to your device, which keeps the document's original formatting with the text fields, checked boxes, and inserted signature.