Fill in PDF online without Adobe — flat PDF, scanned form, or interactive AcroForm, it doesn't matter. Fill up PDF online with JustFill and get started for free.
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There are two types of PDF forms — and most tools only handle one. That's why you can't fill in PDF online free with typical editors when your document is scanned or flat.
~80% of all PDF forms
Flat PDFs look like forms but have no interactive fields. The lines, labels, and boxes are just part of the page image. You can't click into a field and type.
Most free tools can't fill these. They require embedded form metadata that flat PDFs don't have.
Examples: scanned government forms, PDFs exported from Word/Canva, hand-drawn form templates, insurance claim forms.
~20% of PDF forms
AcroForms have embedded interactive fields — you can click into them and type directly. Created with Adobe Acrobat or similar professional tools.
Free PDF readers can fill these (Adobe Reader, Preview), but with limited editing and no template saving.
Examples: IRS tax forms, some bank applications, government e-forms with "Fill & Sign" instructions.
Instead of relying on embedded form metadata, JustFill analyzes what the page looks like. Fill up PDF online regardless of type — scanned, flat, or interactive.
Paper forms scanned to PDF. No interactive fields exist. JustFill detects the visual layout and lets you draw or auto-detect fields on the scan.
PDFs created in Word, Canva, or design tools. They look like forms but have no fillable fields. JustFill treats them the same as any other document.
Interactive PDFs with embedded fields. JustFill can fill these too — and adds template saving, AI mapping, and voice dictation that native readers don't offer.
This guide is for the common "I already have a PDF and need to type into it" problem. If you need to create reusable fields from scratch, see the free PDF filler instead.
Need to build a reusable field layout? Use the free PDF filler.
Need to turn a static document into a structured form? Read how to make a PDF fillable.
Need a direct online tool page? Open Fill PDF Online.
JustFill renders the page as an image in your browser. It doesn't matter that there are no embedded fields — JustFill works with the visual layout.
Use the Draw tool to create rectangular text fields on top of the form. Place them over blank lines, boxes, or any area where you want to add text. This step is completely free.
Click each field and type your value. When you're done, download the filled PDF. Your text is embedded directly into the document — it looks like it was typed natively.
Pro tip: If you fill the same flat PDF regularly (e.g., a monthly report template), save the field layout as a template. Next time, JustFill pre-positions all fields automatically — you just paste new data and download.
Free PDF form filler with no watermark. Upload any PDF, draw fields, and download instantly.
Step-by-step guide to filling any PDF form in your browser — no software required.
Turn any PDF into a fillable form — from Word, Excel, scanned documents, or flat PDFs.
Don't waste time figuring out if your PDF has AcroForm fields. JustFill works with everything.
No credit card. No watermarks. No catch.