Quick answer: Open the Form Filler, load your PDF, click each field and type. If the form has no clickable fields (a scanned or "flat" form), use the Edit PDF tool to place text exactly where it belongs.
Two kinds of PDF forms
Knowing which type you have saves a lot of frustration:
| Type | How to recognize it | How to fill it |
|---|---|---|
| Interactive (AcroForm) | Fields highlight when you click them | Form Filler |
| Flat form | Looks like a form, but clicking does nothing (often a scan) | Edit PDF — add text boxes over the lines |
Filling an interactive form
- Open the Form Filler
- Drop in your PDF — it opens instantly, nothing is uploaded
- Click each field and type; checkboxes and dropdowns work as expected
- Add your signature if needed (see Sign PDF)
- Download the filled form
Tip — flatten before sending: a filled form's fields can still be edited by the recipient. Run the file through Flatten PDF to lock your answers into the page permanently.
Filling a flat or scanned form
Scanned forms have no fields — but you don't need to print them:
- Open the Edit PDF tool
- Click where an answer belongs and type — or double-click any empty space to add a text box
- Match the font size to the form (the toolbar lets you adjust size and style)
- Add a signature with the Sign tool
- Download — done, no printer involved
Creating your own fillable form
Need to send a form for others to fill? The Form Creator adds real interactive fields — text boxes, checkboxes, dropdowns — to any PDF, so recipients can fill it digitally instead of printing.
Common scenarios
- Job applications — fill, sign, flatten, email. Five minutes, no printer
- Government forms — most are flat PDFs; the Edit tool handles them
- School enrollment packets — fill each form, then merge them into one file to submit
- Repeating the same form monthly? Save a copy with the constant fields filled, then add the changing values each time
Frequently asked questions
Why can't I click the fields in my form? It's a flat form — likely scanned or exported without fields. Use the Edit PDF tool instead.
Will the recipient be able to change my answers? With an interactive form, yes — unless you flatten it first. Flat-form answers added in the editor are already part of the page.
Is it safe for forms with personal data? Yes. Forms regularly contain names, ID numbers and addresses — CommandPDF processes everything in your browser, so that data is never transmitted anywhere.
Can I fill forms on my phone? Yes — both tools work in mobile browsers, and signatures can be drawn with your finger.
Conclusion
Print → fill by hand → scan → email is dead. Whether your form is interactive or a flat scan, you can fill, sign and send it from your browser in minutes.
Related guides: