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Certyneo Reader · PDF tools

Create a fillable PDF form, free

Your document was designed to be printed and filled in by hand. Certyneo Reader finds the dotted lines, boxes and labels that call for an answer, lets you review them, then places real fields — fillable in any reader. Everything happens in your browser.

The file never leaves your device
Free, with no page limit
No account, no installation

Drop your PDF here

or choose a file on your computer, tablet or phone

100% local reading: the document is never sent over the internet.

Make a PDF fillable in three steps

  1. 1

    Open the document

    Drag the PDF into the reader or pick it from your device, then open the « Create a form » tool.

  2. 2

    Review the proposed areas

    Each detected area comes with a name taken from the label before it. Untick what is not a field, rename what deserves a clearer name.

  3. 3

    Place the fields

    The saved document holds real form fields: they fill in from the keyboard, tab through, and stay editable until you flatten them.

Everything happens in your browser: the file never leaves your device. Open in the reader

Related tools and guides

Frequently asked questions about PDF forms

What is a real form field?

An AcroForm field, the form building block the PDF format provides. It fills in any reader, tabs through, can be read back programmatically, and its contents stay editable until you flatten them. Text simply drawn in the right place looks like a field but cannot be filled.

Is my PDF uploaded to a server?

No. Detection and field placement happen inside your browser. Certyneo never receives, stores or reads your document, and adds no promotional mention.

Are all the areas found?

No, and that limit is deliberate: the tool reads the page text. A run of dots, a box drawn as a character or a label ending with a colon are recognised; a plain line drawn under « Signature » is not, because it is not text. Conversely a row of leader dots in a table of contents may be proposed by mistake: that is why you review the list before placing the fields.

Why do field names matter?

Because they are what identifies the answers when the form is read back — in a spreadsheet, in another piece of software, or in an integration. A form whose fields are called « field_7 » is unusable. The tool therefore reuses the label printed on the page, and lets you correct it.

Can two fields share a name?

The format allows it, with a precise effect: two fields with the same name share their value, so typing in one fills the other. Useful for a mention repeated at the top of every page, disastrous when unintended. The tool therefore refuses duplicates, and makes names unique automatically.

Does this PDF need to be signed?

Send it for electronic signature in minutes: your signers sign from their phone, without creating an account.

Get started with Certyneo for free