You have received a PDF form — a job application, a tax form, a rental agreement — and you need to fill it in and return it. If you are lucky, the form has interactive fields you can click directly in your browser or a PDF reader. If you are unlucky, it is a scanned document or a flat PDF with no clickable fields, and typing into it seems impossible.
Either way, there is a free solution that works in your browser in under two minutes. Here is how to handle both types of PDF forms.
Type 1: Interactive PDF forms (fillable fields)
Some PDFs are built with interactive form fields — you can click on a blank box and type directly into it. These are called AcroForms and are common in government forms, tax documents, and official applications. If your PDF has these, you can usually fill them in without any special tool:
- In Chrome or Edge: Open the PDF in your browser tab. Click on the form fields and type. Chrome's built-in PDF viewer supports basic form filling. When you're done, use Ctrl+P (or Cmd+P on Mac) and print to PDF to save a copy with your answers.
- In Adobe Acrobat Reader (free): Open the PDF and click on any field to type. Use Tab to move between fields. Save the filled form using File → Save As.
- On Mac in Preview: Preview can detect form fields in many PDFs. Open the file and click on a field — if it highlights, you can type into it. Save the file when finished.
Type 2: Flat or scanned PDF forms (no clickable fields)
Many PDF forms are scanned from paper or exported as flat images with no interactive fields. Clicking on them in a PDF reader does nothing. For these, you need a tool that lets you add text as an overlay — placing typed text precisely where the blank lines are on the page.
Filero's Edit PDF tool handles this well. Here is how:
- Open the Edit PDF tool and upload your form.
- Select the Text tool from the toolbar.
- Click on the blank line or field you want to fill in.
- Type your answer. Drag the text box into the exact position if needed.
- Repeat for each field across all pages.
- Click Save and download the completed PDF.
The result looks clean and typed — exactly as if you had a version of the form with real interactive fields. The text is permanently embedded into the PDF so it prints correctly and appears the same on every device.
How to add a signature to a filled form
Most forms require a signature as well as typed answers. After filling in the text fields, you can add your signature in a few ways:
- Draw your signature: Use Filero's Sign PDF tool to draw your signature with a mouse or finger and place it on the signature line.
- Upload a signature image: If you have a PNG of your signature (with a transparent background), the Sign PDF tool lets you upload and position it precisely.
- Type your name: A typed name in a signature-style font is widely accepted for many non-legal documents.
How to fill out a PDF form on iPhone or Android
The same browser-based approach works on mobile. Open Filero's Edit PDF in Safari or Chrome on your phone, upload the form from your Files app, and tap where you want to type. The tool is touch-optimised so you can position text boxes with your finger.
On iPhone, you can also use the Files app to open PDFs and fill interactive forms directly — tap the markup pen icon in the top right to enter markup mode and use the text tool. This works for flat forms too, though positioning can be fiddlier than using a dedicated browser tool.
Saving and sending your completed form
Once your form is filled, save it as a PDF before sending. If the form is large, consider running it through Filero's Compress PDF tool to reduce the file size before emailing — many email providers have attachment limits of 10 to 25 MB.
Frequently asked questions
Can I fill out a PDF form without Adobe Acrobat?
Yes. For interactive forms, Chrome, Edge, and Mac Preview all handle basic field filling without any extra software. For flat or scanned forms, a free browser tool like Filero's Edit PDF adds typed text overlays without any account or software installation.
Will my answers be saved if I close the browser?
If you are filling an interactive form in your browser tab without saving, your answers may be lost when you close the tab. Always save or download the completed PDF before closing. In Filero's Edit PDF tool, click the Save button to download the completed file to your device.
Can I edit a PDF form I already filled in?
If you filled the form using text overlays, you can re-open the saved PDF in the Edit PDF tool, select any existing text box, and change or delete it. If the form was an interactive AcroForm that you saved with Chrome or Acrobat, the fields are usually still editable when you re-open the file in a compatible viewer.
Ready to try it?
Use Filero's free Edit PDF tool. No account needed, works on any device.
Open Edit PDF