MergevantaMergevanta

Fill in PDF forms, or turn any PDF into a fillable form

Fill in a PDF form's text boxes, checkboxes, radio buttons and dropdowns, and flatten it if the answers shouldn't change. No fields? Draw them and get a fillable PDF. Free, with no watermark, all in your browser.

No watermarkFree, no sign-upRuns in your browserAccepts .pdf
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Quick answer

How do I fill in a PDF form online for free?

Add the form to Mergevanta's PDF forms tool. Its fields appear as a simple list — text boxes, checkboxes, radio buttons and dropdowns — with readable labels and page numbers. Fill them in, turn on Flatten form if it should be read-only, and press Save filled PDF. Everything runs in your browser.

Price
Free
Watermark
None
Sign-up
Not required
Accepts
.pdf
You get
The filled (or newly fillable) .pdf
Processing
In your browser — files never leave your device
Files stored
Never
Works on
Windows, macOS, Linux, iPhone, iPad and Android

Updated

What you get

Why use Mergevanta to fill in a PDF form

Every field in one list

Fields are listed with readable labels and page numbers. Tap one and its box lights up on the page; tap a box on the page to jump to its field.

Flatten when you're done

Draw the answers into the pages so the form becomes read-only — or keep it fillable for the next person.

Make any PDF fillable

No fields? Draw text fields, checkboxes and dropdowns, name them, and get real form fields that Acrobat, Chrome and other readers can fill in.

Answers in many languages

Hindi, Bengali, Tamil, Greek, Cyrillic, Chinese and more are written with an embedded Noto font holding only the characters you typed.

Step by step

How to fill in a PDF form with Mergevanta

  1. 1

    Press Choose PDF and open your form.

  2. 2

    Fill in the fields in the list, or tap a box on the page to jump to its field.

  3. 3

    Turn on Flatten form (make it read-only) if the answers shouldn't change.

  4. 4

    Press Save filled PDF, then Download.

  5. 5

    No fields? Draw a Text field, Checkbox or Dropdown on the page, name it and press Create fillable PDF.

FAQ

PDF forms questions

Standard PDF forms (AcroForm): text fields, multi-line text, checkboxes, radio buttons, dropdowns and lists. Forms built with XFA, an older Adobe format, can't be filled here — the tool tells you when it finds one.

It draws each answer into the page and removes the fields, so the form can't be edited any more and looks the same in every reader. Keep a fillable copy if you might need to change an answer.

No. The form is filled in and saved by your browser. When an answer needs a font for another script, only that font is downloaded from a public font CDN; your PDF and answers stay on your device.

No. Scripts such as totals or input checks are kept in the file untouched but never run here. They run when the PDF is opened in a reader that supports them.

Yes. When a PDF has no fields, draw text fields, checkboxes and dropdowns on it. The result has real form fields that Acrobat, Chrome, Edge and other PDF readers can fill in.

Yes. The fields are a simple list that works with your phone's keyboard, and the page preview shows each answer in its box as you type.

Signature fields can't be signed in this tool. Fill in the form, save it, then add your signature with Sign PDF.

Keep going

Other tools in the studio

Sign PDF

Draw, type or upload your signature, then place it — with your initials, the date and your name — on any page of a PDF.

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Edit PDF

Add text boxes, images, shapes, arrows, freehand drawing, highlights and white-out to any page of a PDF.

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Protect PDF

Add a password that's needed to open your PDF, and choose whether people can print, copy or edit it.

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