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Mofumi PDF

Fill PDF Form

Fill in fillable PDF forms — text boxes, checkboxes, dropdowns — and save, optionally flattened.

100% Private — files never leave your device
Upload PDFDrop files here or click to chooseAccepted: PDF Files never leave your device

About this tool

Fill PDF Form lists every fillable field in the document — text boxes, checkboxes, radio buttons, dropdowns and lists — with an input for each, already showing any values the form contains.

Type your answers (Thai is supported), then save. Turn on “Flatten” to convert the fields into regular page content so the answers can't be changed and display the same everywhere.

The form is filled in your browser; your personal details are never uploaded to a server.

Engines: pdf-lib

How to use

  1. 1

    Open a fillable PDF form.

  2. 2

    Fill in the fields in the list.

  3. 3

    Click “Save filled form” and download.

Use cases

  • Government and bank forms

    Complete application forms without printing them.

  • HR paperwork

    Fill in leave, expense and onboarding forms.

  • Lock answers

    Flatten a completed form before emailing it.

Frequently asked questions

My PDF shows no fields.

It isn't a fillable form. Use Form Creator to add fields, or Edit PDF / Scratchpad to type on the page.

Can I type in Thai?

Yes. Mofumi embeds a Thai font for the field appearances.

What does flatten do?

It turns fields into normal text so they can no longer be edited.

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