Will the form work in Adobe Reader and other viewers?

Yes. The fields are standard AcroForm widgets — the same mechanism official government forms use — supported by Adobe Reader, Preview, Foxit, and the built-in viewers in Chrome, Edge, and Firefox.

How do I place fields accurately on the page?

Work in points from the page dimensions: A4 is 595 × 842, US Letter 612 × 792, with Y measured up from the bottom. A field for a line one-third down a Letter page sits near Y ≈ 520. Expect a test round or two — add a few fields, save, check the output, adjust.

Can I add dropdowns, radio buttons, or signature fields?

Not currently — the tool creates text fields and checkboxes. A text field can stand in for a dropdown ('enter Yes or No'), and signatures can be added to the filled form afterwards with the Sign PDF tool.

Can I pre-fill fields with default values?

Fields are created empty. To distribute a pre-populated version, run the saved form through the Fill PDF Forms tool, enter the defaults there, and send that file.

How do I collect and lock the responses?

Recipients fill the form in their reader and send it back; the values live in the fields. To freeze a returned form so the values can't be altered, run it through Flatten PDF.

Create PDF Form

Add interactive form fields to your PDF. Files are processed entirely in your browser.

Drop PDF files here or browse

Max 100MB per file

About Create PDF Form

A fillable PDF form is an ordinary PDF with interactive fields layered onto it — recipients open it in any reader, type into the fields, tick the boxes, and save. It beats the print-sign-scan loop, and it's how applications, intake forms, and registrations get distributed.

Convertora's create-form tool adds those fields to an existing PDF. Typically you start from a designed-but-flat form — a page with labeled boxes and blank lines, exported from Word or a design tool — and place a real input wherever the page invites one. Two field types are available: text fields for free entry and checkboxes for yes/no marks, which between them cover the large majority of practical forms.

Fields are positioned by coordinates and dimensions, in PDF points (72 per inch): X from the left edge, Y from the bottom, plus a width and height. Each field gets a unique name — the label under which its value is stored and later read by form-processing tools. The result is a standard AcroForm that behaves correctly in Adobe Reader, browser viewers, and everything in between.

How to use it

1Upload the PDF that should become fillable (up to 100 MB).
2Define a field: a unique name (e.g. 'full_name'), the type (Text or Checkbox), the page, X and Y coordinates, and the width and height. Defaults of 200 × 25 points suit a typical text line.
3Click Add Field and repeat for every input the form needs. Queued fields appear in a list, with a remove button for corrections; duplicate names are rejected with an inline error.
4Click Save. The interactive fields are written into the PDF, which downloads with a -form suffix.
5Open the output and tab through it — fix any misplaced field by adjusting its coordinates and running again from the original.

Common use cases

Turning a Word-designed application form into a PDF people can actually type into.
Making club registration or consent forms fillable so they come back legible.
Adding response fields to a questionnaire before emailing it out.
Rebuilding an old paper form as a fillable document without redesigning it from scratch.

Frequently asked questions

Tips

Name fields like variables — 'date_of_birth', not 'Field 3'. Anyone processing the responses later will thank you.
Standard text fields read best at 20–25 points tall; checkboxes look right square, around 15 × 15.

100% private — runs in your browser

Convertora processes everything on your device using JavaScript and WebAssembly. Files never leave your browser, are never uploaded to a server, and are never seen by us or anyone else. The moment you close the tab, the data is gone — there is no temporary cloud copy, no log entry, no retained backup.

Because the work happens locally, processing speed depends on your device — but there are no rate limits, no daily caps, and no file size restrictions beyond what your browser can handle in memory. No signup, no account, no payment. The tool works the same in incognito mode, on a corporate network, or after the page has loaded once, even with the network disconnected.