PDF Form Filler
Fill out PDF forms instantly. Type directly onto any PDF, add text, and sign. 100% private, runs in your browser without Adobe Acrobat.
- No upload
- No software needed
- Preserves layout
- 100% private
Drop a PDF here
Edit text, sign, watermark, merge, split, extract. Everything on one screen.
- 100% Secure
- No Upload
- Local PDF Engine
- No Watermark
Why use a free PDF form filler?
Traditionally, filling out a PDF form meant printing it, writing on it with a pen, and scanning it back into your computer. Or, you had to pay for expensive software like Adobe Acrobat Pro.
ToolDeck makes it instant and free. Our tool lets you drop text fields, checkboxes, and signatures anywhere on the page. Whether your PDF is a digital form or a scanned image, you can fill it out visually.
We process everything locally using WebAssembly, making it the safest way to fill sensitive forms like tax returns (W-9), medical records, or job applications. Your data never leaves your device.
ToolDeck vs Adobe Acrobat vs Cloud Tools
See why ToolDeck is the best free alternative for filling out PDF forms.
| Feature | ToolDeck | Adobe Acrobat | Cloud Tools |
|---|---|---|---|
| 100% Free | Yes | No | Partial |
| No Upload (100% Private) | Yes | Yes | No |
| No Sign-up Required | Yes | No | Partial |
| No Watermark on Output | Yes | No | No |
| Fill Flat or Scanned Forms | Yes | Partial | Partial |
| Works on Mobile Browsers | Yes | Partial | Yes |
| Supports Large Files | Yes | Yes | Partial |
How it works
- 1
Drop your PDF
Upload the form you need to fill. It works with interactive PDFs and flat, scanned forms.
- 2
Fill the Fields
Click "Add text" to type anywhere on the page. Add checkmarks, fill in dates, or drop in a signature.
- 3
Download
Save your filled PDF. It remains high quality, flattened for security, and ready to submit.
Features
Type Anywhere
Don't worry if your PDF isn't a fillable AcroForm. Our editor lets you click anywhere on the page to type text, check boxes, or add dates.
100% Client-Side Privacy
Your documents are processed entirely in your browser. We never see your sensitive tax, medical, or legal data.
Preserves Original Formatting
Fills the original PDF without altering the layout, fonts, or images. The output looks exactly like the original form.
Sign & Redact
Not only can you fill forms, but you can also draw a signature and permanently black out sensitive information before sharing.
What people use it for
Job Applications
Many companies require you to fill out PDF application forms. Fill them fast without printing, scanning, or buying software.
Tax Documents (W-9, 1099)
Fill out W-9, tax returns, and government forms privately without uploading your sensitive data to a cloud server.
Medical & Insurance Forms
New patient forms or insurance claims. Fill them out on your device securely before your appointment.
Rental Agreements
Fill in your details on lease agreements and real estate forms directly in the browser. No printing needed.
Frequently Asked Questions
What is a fillable PDF form?
A fillable PDF (often called an AcroForm) contains interactive fields such as text boxes, checkboxes, and dropdown menus. However, ToolDeck can also fill flat PDFs (scanned images or standard text documents) by stamping text directly onto the page.
How do I fill out a PDF form online?
Upload your PDF using the tool above. Click the "Add text" tool and click anywhere on the page to start typing your information. You can also use the "Sign" tool to add your signature.
What if my PDF is a scanned image?
Because our tool is powered by the ToolDeck PDF Editor, you can type directly on top of scanned images. Just click "Add text" and start typing.
Is it safe to fill tax forms here?
Yes. This tool uses WebAssembly to process the PDF entirely inside your browser. Your file is never uploaded to a server. It is 100% private, secure, and zero-knowledge.
Can I save and edit the form later?
Yes, the downloaded PDF can be re-uploaded here later to make changes, or you can open it in any standard PDF viewer.
Does it work on mobile (iPhone / Android)?
Yes, it works perfectly on iOS (Safari) and Android (Chrome) browsers. You can fill and download forms on the go.
What is the difference between AcroForm and XFA?
AcroForm is the older, standard PDF form format supported by almost all software. XFA is a newer, more complex XML-based format used mostly by Adobe. This tool visually stamps text over the PDF, meaning it bypasses format limitations entirely.
Why are my form fields not showing up?
If you uploaded a PDF and no interactive fields appeared, the PDF was likely flattened or is just an image. Simply use the "Add text" tool to type your answers manually.
Can I fill a PDF form without Adobe Acrobat?
Absolutely. You do not need Adobe Acrobat or any paid software. ToolDeck uses open-source JavaScript libraries to read and write PDFs entirely in your browser.
Are there any file size limits?
Because processing happens in your browser, the limit depends on your device RAM. Most standard form PDFs are under 5MB and will process instantly.