Fill in a PDF form
Fill in the interactive fields of a PDF form — text boxes, checkboxes and dropdowns — directly in your browser, then save a completed copy or flatten it so the values can no longer be changed. Nothing is uploaded.
Fill PDF Form
AcroForm fields · fill and optionally flatten
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How to Fill PDF Form
- Add your PDF form. Drag the file onto the drop zone. Every fillable field is detected and listed.
- Fill in the fields. Type into text fields, tick checkboxes, and choose values from dropdowns — each shown with its field name so nothing is ambiguous.
- Choose whether to flatten. Leave the form editable for later changes, or flatten it so the values become permanent, uneditable page content.
- Save. Download the completed PDF.
What this detects, and what it doesn't
This reads a PDF's AcroForm — the standard interactive-form layer built into the PDF specification — and supports its most common field types: text fields, checkboxes, dropdowns and radio button groups. That covers the overwhelming majority of forms you'll encounter: job applications, tax forms, consent forms, registration documents.
A small number of forms use less common field types — signature fields, list boxes, push buttons — which this tool leaves untouched rather than guessing at. If a PDF has no AcroForm at all (many PDFs that merely look like forms are actually just static text with underlines), no fields will be found, and the file needs a different approach — the Edit PDF Text tool, once it ships, will be better suited to filling in a non-interactive form by hand.
Flatten or leave editable — which to choose
Leaving the form editable keeps the fields interactive in the saved file, so it — or whoever receives it — can still open it in a PDF reader and change the answers later. Useful for a draft or a form you're filling in over several sessions.
Flattening burns the values you entered directly into the page and removes the interactive fields entirely. The result looks identical but can no longer be edited or have its values extracted programmatically — the right choice once a form is finished and about to be submitted or signed, since it guarantees what you see is what stays.
Frequently asked questions
What kinds of form fields are supported?
Text fields, checkboxes, dropdowns and radio button groups — the field types used in the large majority of real-world PDF forms. Signature fields and list boxes are not currently editable here.
The tool says this PDF has no fillable fields. Why?
The PDF likely has no AcroForm layer at all — it may just be static text with underlines that looks like a form but has no interactive fields behind it. Only PDFs with a real interactive form layer will show fields here.
Is my data uploaded anywhere?
No. Reading the form, filling it in and saving the result all happen in your browser — a genuinely important property for the tax forms, medical intake forms and identity documents people usually fill in with a tool like this.
What does flattening actually change?
It converts your entered values from interactive field data into permanent page content and removes the fields. The visual result is the same, but the file can no longer be edited or have data extracted from its fields afterward.
Can I come back and edit the form again later?
Yes, if you saved without flattening — the fields stay interactive and can be reopened here or in any PDF reader. Once flattened, the values are permanent.
Will the field names shown mean anything to me?
They're the internal names the form's creator gave each field, which are sometimes descriptive ("FullName") and sometimes not ("Text_1"). If a name is unclear, its position and type — text box, checkbox, dropdown — usually make the intent obvious.