Fill PDF
Detect and complete existing interactive PDF form fields directly in your browser.
Choose from your deviceDrag and drop a fillable PDF here
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Fill PDF guide
How to fill a PDF form
Fylento detects existing interactive form fields inside your PDF and lets you complete supported fields directly in your browser before saving a filled copy.
Add your fillable PDF
Select a PDF from your device. Fylento reads its built-in form structure and detects supported fields.
Complete the fields
Enter text, check boxes, choose radio options, and make selections from supported dropdown and option-list fields.
Save the filled PDF
Keep the fields editable or flatten them into permanent page content before downloading the completed document.
Supported PDF form fields
The current tool works with interactive AcroForm-style fields already embedded in the PDF.
Text fields
Enter text into regular or multiline text fields that already exist in the PDF form.
Checkboxes and radio buttons
Toggle checkboxes and select one of the available radio-group options.
Dropdown fields
Choose from the options provided by an existing PDF dropdown field.
Option lists
Select one or more values when the original form contains a supported option-list field.
This tool fills existing form fields
Fylento does not automatically turn blank lines, printed boxes, or scanned paperwork into new interactive fields.
The PDF must already contain form fields
If the PDF has no embedded form fields, Fylento will report that no fillable fields were found.
Unsupported field types are left alone
Fylento identifies unsupported form-field types but does not attempt to modify them.
Keep fields editable or flatten them
Before saving, you can choose whether the filled values should remain interactive form fields or become permanent page content.
Keep fields editable
Leave flattening off when you want compatible PDF readers to retain the form fields after download.
Flatten filled fields
Enable flattening when you want the completed values made permanent and no longer editable as interactive form fields.
Fill PDF forms privately in your browser
Form detection, editing, and PDF creation happen on your device. Your document does not need to be uploaded to a remote form-filling service.
Local form processing
Fylento reads the PDF form structure and writes your values into the document inside your browser.
Original PDF structure retained
When flattening is disabled, the existing form structure remains interactive in the downloaded PDF.
Common uses for fillable PDFs
Fill PDF FAQ
Can Fylento fill any PDF?
No. The current tool requires the PDF to already contain supported interactive form fields. A scanned form or plain PDF with no form structure cannot be filled automatically with this tool.
Which form fields are supported?
Fylento currently supports text fields, checkboxes, radio groups, dropdowns, and option lists.
What does flattening a PDF form do?
Flattening converts the filled form appearances into permanent page content so the form fields are no longer editable in the downloaded PDF.
Can I keep the fields editable?
Yes. Leave the flatten option off and Fylento updates the field appearances while preserving the form fields in the saved PDF.
Does Fylento upload my PDF?
No. The current Fill PDF tool processes the document locally in your browser.
Related PDF tools
Use another Fylento tool when you need to add free-position text, sign the document, flatten it, or protect the completed form.
Edit PDF
Add free-position text when the PDF does not contain the form field you need.
Sign PDF
Add your signature after completing a form that requires signing.
Flatten PDF
Flatten PDF content when you need a more broadly non-editable final copy.
Protect PDF
Add password protection to the completed PDF before sharing it.