Must have fillable form fields (AcroForm)
LovelyPDF detects AcroForm fields automatically and provides a visual overlay for filling. Click any highlighted field to fill it. Optionally flatten the form to lock your answers before sharing. Your form data never leaves your device.
What is flattening a PDF form?
Flattening converts interactive fields into static content. Filled values become part of the page and can no longer be edited — useful before printing or submitting.
What if my PDF has no fillable fields?
Use the Edit & Redact tool to add text annotations over the areas you want to fill.
Can I save my progress?
Not currently. Download your filled PDF before closing the browser tab.
Why fill forms without uploading?
Government forms and tax documents contain sensitive personal information. LovelyPDF processes everything locally — your answers stay on your device.
Form filling runs entirely in your browser using PDF.js and pdf-lib — your form and the data you enter never leave your device. Government application forms, tax declarations, insurance claim forms, and HR documents that may contain personal or financial information are processed locally without any server upload at any stage.
No account is required and there is no page limit. Fill a simple one-page application or a complex multi-page government form with the same tool, without creating an account, providing your email address, or accepting a usage cap tied to a free tier.
The form filler works on any modern browser including mobile. Fill an application on your phone while you have the supporting documents open in another tab, then download and email the completed form immediately. No app installation is needed on any platform.
Text fields, checkboxes, radio buttons, and dropdown lists — the four standard AcroForm field types supported in the PDF specification. Signature fields are not auto-filled; use the Sign PDF tool to add a handwritten or typed signature to those positions separately.
Some PDFs are designed to look like forms but contain only static text and printed lines rather than interactive AcroForm fields. In this case the tool will show no highlighted fields. Use the Edit PDF tool instead — place text boxes at the appropriate fill-in positions over the static form layout.
Yes. With Flatten on Save enabled, form fields are rendered into the page and will print exactly as they appear on screen — universally compatible with all printers and PDF readers. Without flattening, most viewers and printers render interactive fields correctly, but flattening is recommended for official submissions where exact visual fidelity is required.
Download the partially filled PDF and re-upload it to continue filling. Interactive fields that were not flattened remain interactive in the re-uploaded file and can be edited further. If you used Flatten on Save on the first download, those fields are locked and cannot be edited — upload the original form again in that case.