How to make a PDF fillable without Adobe Acrobat

#Which free route should you take?

There are three, and they differ in one thing: what the recipient has to have.

Route	What you send them	What they need
Desktop editor — LibreOffice Draw	A PDF file	A reader that honours AcroForm fields, and the discipline to save rather than print
Online PDF editor — PDFescape, Sejda	A PDF file	The same
Browser form tool — FillFront	A link	A browser

The first two are genuinely free and produce a genuinely fillable file. They also hand the reader problem straight to the person you are asking for something.

The third avoids that problem rather than working around it, because nobody but you ever opens a PDF editor. Fillable PDF vs online form is the longer version of the trade-off.

#Add the fields in your browser

Five steps, no install.

1. Upload the PDF. Use the document you already send people. It does not need redesigning or exporting in any special way.

If you want to know what you are holding first, the free fillable PDF checker counts the form fields in a file. Above zero means somebody already did this work, and your trouble is a reader that will not honour the fields. Zero means they have never existed.

2. Check the fields it found. The PDF is read on upload, and a field is proposed wherever someone has to write: underscored blanks, printed ☐ boxes, the cells of a ruled table, and the real fields of a file that already carries an AcroForm. Each one is labelled from the caption printed beside it.

Nothing is created until you say so. You work down the list, add the ones that are right, ignore the rest. On a tidy one-page form, that is most of the job done.

3. Draw what it missed, and say what each answer is. Detection is strong on ruled and underscored layouts, thinner on free-form ones, so expect to draw a few yourself. Mark a rectangle where the answer belongs and pick its type: single line, multi-line, date, number, email, signature, a single tick box, multiple choice, or a dropdown.

The type is not decoration. A date field opens a date picker, an email field rejects an address with no @ in it, and multiple choice ticks the right printed box on the page.

4. Test it on yourself. Open your own link, fill the form in properly, and look at the PDF that comes back.

Two minutes here catches nearly everything that goes wrong in front of a real recipient: an answer that overruns its box, a label that reads clearly to you and cryptically to everyone else, a required field you forgot to mark. Do it before you send the link, not after the first response.

5. Share the link. Email it, put it in a message, print it as a QR code on a poster at a front desk. There is no attachment. How to send a PDF for someone to fill out covers what to do with that link once you have it.

#The bits people get stuck on

A name split across a row of little boxes. Comb fields — one character per cell — are worth one wide field across the whole row rather than fifteen tiny ones. Nobody reading the finished PDF will mind that the letters are not centred in their cells.

A printed Yes / No pair, or a list to tick. That is one multiple-choice field with two options, not two separate tick boxes. Set it to one answer or "check all that apply", and each option marks its own printed box. Use a single tick box only where a box stands alone with no alternative — an "I agree" line.

A signature line. Place a signature field over the printed line, not above it, and give it the height of a real signature.

Answers that come out cut off. Size each box to the space on the page, not to the longest answer you can imagine. PDF form text cut off explains what happens when a long answer meets a short box, and what to do about it.

A scanned or photographed form. It still works — the page is an image, so blanks are found from the picture rather than the text — but expect to place more by hand. How to turn a scanned form into an online form is the guide for that case.

#Can I do this on a phone or tablet?

You can complete a form on a phone. Building one is a different job. Placing fields means dragging small rectangles onto a page at precise positions, and that is much easier on a screen where you can see a whole A4 page at readable size. Build on a laptop; send to anything.

#What the person filling it in sees

They see a web page. The fields you kept appear as ordinary inputs with your labels above them, laid out top to bottom, sized for whatever screen they are holding, with the required ones marked.

Nothing downloads. No app to fetch, no account to create, no "open in" step where a file disappears into a downloads folder. Someone can complete a tenancy application on a bus, or a new starter can do their emergency contacts on the sofa the night before they begin.

#Getting the finished PDF back

Submitting does not send you a summary of what somebody typed. Their answers are printed into your PDF, in the spaces you chose, and that file is what arrives — one completed PDF per response, in the layout you already use.

They collect in one place, under the form they came from, so there is no inbox to search and nothing to reassemble from attachments.

Worth saying plainly, since the point here was avoiding a subscription: nothing about that file is proprietary. It is an ordinary PDF — it opens in whatever reader is already on your machine, prints on any printer, and attaches to an email like any other document.

You have skipped buying an editor without ending up with a format only that editor can read.

#Start from a template instead

If you do not have a PDF yet, do not make one just to have something to upload. There are ready-made forms you can send today, with the fields already placed.

Look through the HR and hiring templates if you are onboarding someone — the job application form and the new hire information sheet cover most of a first week between them. Edit the labels, remove fields you do not want, and send it in the same sitting.