Flatten PDF

Drag it in or click Choose PDF. The preview shows the first page and how many form fields were detected.

Keep Flatten Entire Document, or switch to Specific Pages and enter a range like "1-3, 5" to leave the rest editable.

Click Flatten PDF Document; the tool converts the interactive fields into static content while preserving the look.

Use Verify with Visual Compare Tool to scrub between original and flattened, then click Download Flattened PDF.

Upload the PDF, choose whether to flatten the whole document or specific pages, and click Flatten PDF Document. The interactive fields become static content; use the compare slider to check the result, then Download Flattened PDF. Everything runs in your browser with no upload.

Flattening merges a form's interactive fields — text inputs, checkboxes, dropdowns, and signatures — into the static page. The filled-in data becomes permanent, so it can't be changed and the document renders the same everywhere. People flatten forms to lock answers before sending and to stop forms printing blank on other devices.

Interactive fields are drawn by the viewing app, and some apps and printers don't render that layer — so the form looks empty or misaligned. Flattening solves this by baking the data into the page as ordinary content, which displays and prints identically in any reader, on any device.

No — and that's the point. Once flattened, the fields are part of the page and can't be edited as form fields again, which makes the document tamper-resistant. If you might need to change the answers later, keep an editable copy of the original before you flatten.

Yes. Switch the Flattening Scope to Specific Pages and enter a range like "1-3, 5". Only those pages are flattened, leaving form fields on the other pages editable — useful when one section is final but another still needs input.

Yes. The process converts all interactive widgets — text fields, checkboxes, radio buttons, dropdowns, and signature fields — into static content. Their visible state (ticked boxes, entered text, the signature image) is preserved and locked into the page.

No. The tool preserves the visual appearance, so the flattened page looks exactly like the filled-in form — just no longer editable. Text and graphics stay crisp; there's no quality loss, because the data is integrated rather than re-rendered as a low-resolution image.

No. The flattening runs entirely in your browser using local PDF libraries, so the file never leaves your device or reaches a server. That matters for contracts, applications, and signed forms. Closing the tab clears the file from memory.

Yes. The tool works in any modern browser on iPhone or Android — no app needed. Upload, flatten, and download. Larger forms and batch jobs are smoother on a laptop, but a single form flattens fine on a phone.

Yes. Flattening is free, the result has no watermark, and there's no account to create. Lock your form and download — no paywall before the download.

Yes. The Batch Processing section lets you select multiple PDFs, applies the flattening settings to all of them, and packages the results in a single ZIP. It's ideal for processing a stack of completed forms in one go.

It helps. Many archival and legal systems prefer or require static documents without interactive or dynamic content, since those can render inconsistently or carry risks. Flattening turns a fillable form into stable, read-only content, which aligns with those requirements — pair it with your organisation's specific PDF/A workflow as needed.