Fill PDF Form
Open a PDF with fillable fields, type into text boxes, tick checkboxes and choose from dropdowns or radio groups, then save the completed document. Fields
Drop your PDF file here
or click to browse files
Open a PDF that has real form fields and type into it directly: text boxes, checkboxes, radio groups and dropdowns are all detected automatically, so you fill the form on screen instead of printing it and writing by hand. When you are done, save the completed document.
The filled-in version can be exported with the fields flattened, which turns the answers into permanent page content that cannot be edited afterwards - the right choice for anything you are submitting. The PDF is processed in your browser, so application forms and contracts are never uploaded.
How to fill in a PDF form
Add a PDF that contains form fields
Type into the fields, tick boxes and pick options
Download the filled PDF (optionally flattened)
FAQ
Why does my PDF show no fields?
The document has no interactive form fields - a scanned form or one exported as a plain document is just a picture of a form. Those need to be printed, or annotated with a drawing tool; this tool edits existing fields only.
What does flattening do?
It bakes the entered values into the page content. The document then looks identical but the fields are no longer editable, which prevents accidental changes after submission.
Which field types are supported?
Text fields, checkboxes, radio buttons and dropdown lists. Signature fields are not signing fields in the cryptographic sense - use the PDF signing tool to place a visible signature.
Can I save it and continue later?
Download the filled PDF and load it again: the values are stored in the file, so you can keep working on it in another session.
Does it work with password-protected forms?
Only documents that open without a password can be read. Remove the protection first if you own the file.
Is my form uploaded?
No, the fields are read and written locally with pdf-lib.
At a glance
| Input | |
|---|---|
| Multiple files | No |
| Where it runs | In your browser - files are never uploaded |
| Works offline | Yes — once the page has loaded |
| Price | Free, no sign-up, no watermark |
PDF versions, standards and compatibility
PDF 1.4 is readable by essentially everything and is the safe default for forms and general sharing. PDF 1.7 added better compression and is what most modern software writes. PDF/A is an archival variant that embeds every font and forbids outside dependencies so the file will still render identically in twenty years - archive offices and some government submissions require it, and it is a poor choice for everyday files because it is larger. Encrypted PDFs need the protection removed before any other tool can touch them, and a permissions (owner) password is weaker than an open password: it is meant to discourage printing and copying, not to keep anyone out.
Keeping text selectable and searchable
A PDF can hold real text or a picture of text, and the difference matters: real text can be selected, searched, copied and read aloud, while a scanned page cannot until someone runs OCR on it. Many "reduce size" tools silently flatten everything into images, which shrinks the file but destroys searchability and makes the text blurry when zoomed. If a document needs to stay usable - contracts, manuals, anything you may need to search later - keep text as text and compress only the images. If you are starting from a scan, run OCR first, then compress.