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Free PDF finishing tool

Flatten your PDF

Make form fields or every visible page element permanent. Choose the flattening method that fits how you will share the PDF.

No file upload Two flatten modes No account required

Permanent form values

Turn completed form fields into regular page content so recipients cannot accidentally change them.

Consistent appearance

Full visual flatten helps supported viewers and printers display a consistent visible page.

Local processing

Both methods run locally in your browser without an application document-processing request.

Keep the original: flattening is intentionally difficult to reverse. Save an editable copy before making fields or annotations permanent.

Before you start

Verified facts

Check access, supported files, limits, and processing before choosing a document.

Free

The core task does not require an account.

Flattening makes interactive or layered PDF content permanent — form field values, comments, and annotations become regular, non-editable page content that cannot be accidentally changed. It's commonly used after completing a form or preparing a final copy for printing and distribution.

Price
Free — no account needed
Account
Not required
Processing
Processed locally in your browser without an application document-processing request
Formats
PDF
File limit
Up to 100 MB
Browser support
Chrome, Firefox, Safari, Edge
Clear, practical guidance

What does flattening a PDF do?

Flatten PDF is a browser-based tool that lets you make PDF forms and annotations permanent. Choose PDF, use the controls above to configure the result, then download or use the resulting PDF. The core workflow runs locally in your browser without an application document-processing request. See formats, limits, and processing.

Flattening makes interactive or layered PDF content permanent. It is commonly used after completing a form, adding comments, or preparing a final copy for printing and distribution.

EditPDF AI provides two methods. Form Fields Only converts AcroForm values into normal page content while preserving selectable text, vectors, links, and original images. Full Visual Flatten renders each visible page into a high-resolution single layer so supported annotations and form appearances look consistent everywhere.

Practical examples

Common ways people use this tool in real documents and day-to-day workflows.

Form recipients

Turn completed form values into permanent page content before submitting or archiving a final copy.

Legal and compliance teams

Create a stable review copy whose visible markings and form values cannot be casually changed in a PDF viewer.

Print and production teams

Bake visible page elements into consistent layers to reduce annotation and appearance differences between viewers and printers.

Freelancers and small businesses

Finalize invoices, approvals, and client forms before sharing them outside the organization.

At a glance

Focused workflow

Make PDF forms and annotations permanent.

Supported workflow

Accepts PDF and produces PDF. Up to 100 MB

Access and processing

Core tool with browser-based document processing.

Three simple steps

How it works

  1. 1

    Choose your PDF

    Select a PDF up to 100 MB. The tool checks its page count, form fields, and digital-signature status locally.

  2. 2

    Choose a flattening method

    Use Form Fields Only to preserve document quality and selectable content, or Full Visual Flatten to bake visible annotations and forms into page images.

  3. 3

    Download and review

    Download the permanent copy and confirm the expected values and annotations are visible before sharing or archiving it.

Know before you upload

Formats, limits & privacy

Confirm that your file is supported and understand how this tool handles document data.

Input formats
PDF
Output formats
PDF
File limit
Up to 100 MB
Privacy & security

Inspection, form flattening, visual rendering, and PDF generation run locally in your browser without an application document-processing request.

Optional comparison

Flatten PDF vs. doing it manually

Open this comparison if you are deciding between the browser workflow and a manual process.

Compare the workflows
Doing it manually

Print a filled form and re-scan it just to make the values permanent.

With Flatten PDF

Flatten form fields into normal page content directly in the browser.

Doing it manually

Hope every viewer renders your annotations and form appearance the same way.

With Flatten PDF

Full Visual Flatten bakes the visible page into one consistent layer for any viewer.

Doing it manually

Send a document where recipients could accidentally edit completed values.

With Flatten PDF

Flattened values become permanent page content, not editable form fields.

Quick answers

Frequently asked questions

Which flattening mode should I use?
Use Form Fields Only for completed AcroForm fields when you want to preserve searchable text, vectors, links, and original image quality. Use Full Visual Flatten when visible annotations and consistent appearance are more important than interactivity or text selection.
Does flattening make a PDF impossible to edit?
It removes the selected interactive or layered behavior, but no PDF should be treated as tamper-proof. Specialized software can still modify page content. Use cryptographic signatures when authenticity must be verifiable.
Will flattening invalidate a digital signature?
Yes. Flattening changes the document bytes, so an existing cryptographic signature will no longer validate. The tool detects common signature structures and requires acknowledgment before continuing.
Does Full Visual Flatten preserve searchable text?
No. Full Visual Flatten creates high-resolution page images, so text selection, search, live links, tags, and accessibility structure are removed. Form Fields Only preserves those features.
Is my PDF uploaded to a server when flattening form fields?
No. Inspection, form flattening, visual rendering, and PDF generation all happen inside your browser.
Can I undo flattening after downloading the file?
No. Flattening creates a new PDF with the interactive behavior permanently converted. Keep your original file if you might need the editable version later.
Learn more

Guides & real-world workflows

Used in workflows for: Real Estate Agents · HR & Recruitment
All role workflows →
Core PDF tool

Ready to use Flatten PDF?

Make PDF forms and annotations permanent Return to the tool above to choose your file, or browse the complete PDF toolkit for another task.

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