Flatten interactive form fields, annotations, and layers in your PDF to create a static, locked document. Free, browser-based, and completely private.
or click to browse — supports PDF files up to 50MB
Form fields and annotations have been flattened into the document.
No software or sign-up needed. Flatten your PDF forms and annotations directly in your browser in seconds.
Drag and drop your PDF or click to browse. The file is processed entirely on your device.
Our tool merges all form fields, annotations, highlights, and layers into the static page content.
Your flattened PDF is ready for download — all fields are now permanent, locked parts of the page.
All flattening happens in your browser. Your PDF, including any form data, never leaves your device.
Flatten PDF forms and annotations to create finalized documents that can't be edited, altered, or have their fields cleared by anyone.
Your PDF is processed entirely in your browser. Sensitive form data is never uploaded to any server.
Flatten complex multi-page PDF forms in seconds without any server wait time.
Form fields, text annotations, sticky notes, highlights, stamps, and digital signatures are all merged into the page.
Flatten PDFs from any browser on Windows, Mac, iPhone, or Android.
Flattened PDFs open correctly on any viewer without requiring special software or settings.
Conversion Preview
Conversion complete
Flattening a PDF merges all interactive elements — form fields, checkboxes, dropdown menus, annotations, and comments — into the static content of the page. Once flattened, these elements become a permanent part of the visual layer and can no longer be edited or deleted.
Flattening is essential when you need to finalize a completed PDF form, prevent further edits to annotations, or ensure consistent display across all PDF viewers. Some older or restricted PDF readers struggle to display interactive layers correctly — flattening eliminates this compatibility issue.
Our tool processes your PDF entirely in your browser, so form data, signatures, and document contents never leave your device — an important consideration for legal, financial, or HR documents.
Finalizing Completed Forms: Lock in filled-in form data before sending to prevent recipients from clearing or altering field values.
Archiving Signed Documents: Flatten digital signatures and annotations into the page to create a permanent, tamper-evident record.
Ensuring Print Consistency: Flattened PDFs print exactly as they look on screen — interactive layers can sometimes cause printing issues.
Viewer Compatibility: Flatten PDFs to ensure they display correctly in all PDF viewers, including ones that don't support form interactivity.
Got questions? Here are answers to the most common ones.
Convert, merge, split, compress, and more — all in one place.
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