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Fill PDF Forms

Beta

Fill in a PDF form's text boxes, checkboxes, radio buttons and dropdowns, and save a copy that stays editable.

How to fill out a PDF form

  1. Choose a PDF with interactive form fields.
  2. Wait for the field scan, then fill in the fields listed beside the page.
  3. Fix anything marked in red. The button tells you the next field that needs attention.
  4. Press Fill PDF forms and download the filled copy.

Options

Text fields
Single-line and multi-line text, up to the field's own length limit or 4,096 characters. A counter shows how many characters you have used.
Checkboxes and radio buttons
Tick a checkbox or choose one option in a radio group. Required checkboxes must be ticked before you can save.
Dropdowns and lists
Choose from the listed options. Editable dropdowns also accept your own text, and multi-select lists accept several values.
Required and read-only fields
Required fields are labelled and must have a value. Read-only fields show their current value and cannot be changed.
Undo, Redo and Reset values
Step through your changes, or return every field to the value saved in the file.

What you get

  • One PDF named after the original with "(filled)" added.
  • Changed fields get new values and new appearances. Fields stay interactive, so the form can be edited again later.
  • Unchanged fields, pages and page sizes are kept.
  • Changed text is drawn with the bundled Familjen Grotesk font.

Limits

  • Up to 500 fields, 2,000 field widgets and 200 options per choice field.
  • Characters the bundled font cannot draw, such as many non-Latin scripts and combining sequences, are rejected before saving.
  • XFA forms, signature fields, password fields, file-selection fields, rich-text fields and comb fields are not supported.
  • Two fields sharing one internal name, or fields without a reliable saved appearance, block the run.
  • Form actions and JavaScript are not run by Deckle, but they stay in the file and may run in another reader.

Check the result

Open the download in a PDF reader and look at each field you changed. Click into one to confirm it is still editable. After saving, Deckle checks that the fields are still present, that changed fields have new appearances and that links and page content are kept.

Questions

Can I fill a PDF form without uploading it?

Yes. The form is read and saved in your browser and is not uploaded.

Will the fields still be editable afterwards?

Yes. Filling keeps the form interactive. Use Flatten PDF afterwards if you want the values fixed on the page.

Can I fill a scanned form that has no fields?

No. This tool fills interactive form fields only. A scan with printed boxes has no fields to fill.

Why are some characters rejected?

Changed values are drawn with one bundled font. Characters it does not contain are refused before saving, so the saved form never shows missing glyphs.

Can I sign the form?

Not with this tool. Signature fields are not supported. Signature image places a picture of a signature on the page.

Does Deckle run the form's calculations?

No. Deckle does not run PDF actions or JavaScript, so calculated fields are not updated. The actions stay in the file and may run when you open it in another reader.