Fill PDF: complete forms without printing
Modify · PDF tools

PDF Form Filler

King Docs lets you fill in PDF forms online, typing your details straight into applications, contracts and forms instead of printing and handwriting them. It works in your browser with no software to install. It's free to start, with paid plans for more.

  • Free to start
  • No software to install
  • Works in your browser

Online tool coming soon

This tool isn't available on the site yet.

  • PDF form in
  • Type your details
  • Completed PDF out

Why fill PDFs online?

Printing a form just to write on it is slow and messy. Here's what changes when you type straight into the PDF.

Neat, readable forms

Typed answers are easy to read and easy to correct.

  • No handwriting. Typed details are clear for whoever processes the form.
  • No printing or scanning. Fill in, save and send the PDF straight away.
  • Any device. Complete forms from a laptop, tablet or phone.

What is PDF form filling?

PDF form filling lets you type into a PDF, adding names, dates, answers and ticks where the form asks for them, then save the completed document to send or keep.

What you can do with Fill PDF

Practical ways to use Fill PDF.

1. Complete applications

Fill in job, course and membership applications on screen.

  • Job and course applications
  • Membership and registration forms
  • Travel and booking forms

2. Fill and sign contracts

Add your details, then add your signature.

  • Rental and service agreements
  • Supplier and client paperwork
  • Consent forms

3. Handle everyday admin

Tackle the forms that pile up at home and at work.

  • Expense and claim forms
  • School permission slips
  • Got a Word form? Make it a PDF

4. Send completed forms

Get the finished PDF where it needs to go.

  • Make large forms smaller for email
  • Combine several forms into one PDF
  • Keep a copy for your records

Why King Docs

One place for every document.

Works in your browser

Use King Docs from any device with a web browser. There's nothing to download or install.

Every document tool in one place

Convert, compress, merge, split, sign and transcribe PDFs, images, audio and video without switching sites.

Free to start, with paid plans

Try the tools for free, then choose a paid plan when you need more.

Fill PDF FAQs

How do I fill in a PDF?

Add your PDF to the King Docs Fill PDF tool, type your details into the form, then download your completed PDF. The online tool on this page is coming soon.

Is Fill PDF free?

King Docs is free to start, with paid plans for more.

Do I need to install any software?

No. King Docs runs in your web browser, so there is nothing to download or install.

Can I sign the form as well?

Yes. After filling it in, use Sign PDF to add your signature.

Can I fill in a PDF on my phone?

Yes. King Docs runs in your web browser, so you can fill in PDFs on a phone, tablet or computer.

Related tools

More ways to work with PDFs.

One place for every document.

Ready to fill in your PDF?

Complete your form in a few clicks, then explore the rest of the King Docs toolkit.