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AI field detection: find the blanks on a PDF

Let AI find the blanks on a PDF page and add a text field to each one. Works on scanned forms too. Free accounts get 5 detections a week.

Document with AI detected fields

AI field detection finds the places on a form where you need to write, and adds a text field to each one for you. You skip placing boxes by hand. You just type the answers.

It reads the page as a picture. That means it works on PDFs made on a computer and on scanned or photographed forms, where there is no text to select.

How to use it

  1. Upload your PDF to the editor.
  2. Go to the page you want to fill.
  3. Click Form Field Detect in the top bar.
  4. Wait while the page is checked. A loading screen shows while it works.

AI detection loader

  1. When it finishes, each blank has a text field with a short hint in it, such as the label next to the blank. Click a field, type your answer over the hint, and press Enter.

What happens to fields you already added

AI field detection replaces the fields already on that page. If you placed your own text fields, check marks, or signature there first, the new fields take their place. A message tells you how many items were replaced.

You can get them back. Click Undo Field Detect, and your earlier fields return.

If the AI finds no blanks on the page, nothing changes. A message tells you so, and your fields stay as they were.

The easiest order is still:

  1. Run Form Field Detect on the page.
  2. Fix up the fields it made.
  3. Then add anything else by hand, such as check marks and your signature.

It works one page at a time

Detection looks only at the page you are on. For a form with several pages, go to each page and click Form Field Detect again. Each click counts as one use.

Undo it if you don’t like the result

Right after detection, an Undo Field Detect button shows in the top bar. Click it to:

  • remove the new fields you have not typed in yet, and
  • bring back the fields the detection replaced.

Fields you already typed an answer into stay on the page.

Check the fields it made

The AI is fast, but it is not perfect. Look over the page before you download:

  • Wrong spot? Drag the field onto the line.
  • Too small or too big? Pull its edges to resize it.
  • Extra field? Select it and press Delete.
  • Missed a blank? Add a text field yourself.

What it does not add

Detection adds text fields only. It does not tick boxes or sign for you. After it runs, add:

How many times you can use it

AccountDetections
Free5 per week
Premium15 per week

The count resets every week. When you run out, the editor tells you, and you can still fill the form by hand with text fields. For more detections, see Premium plans.

When it saves the most time

AI field detection helps most on long forms with many blanks, like government applications and intake forms. On a short form with only two or three blanks, placing the fields by hand can be just as quick.

Ready to start filling your PDFs?

Fill out PDF documents like a pro in minutes - no premium account needed.

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