Flatten PDF
Files
Select a PDF with forms or annotations to flatten into static content.
Drop files here or
Accepted: PDF
All processing happens in your browser — your files are never uploaded to a server.
About this Tool
Lock and flatten interactive form fields, check boxes, and signature layers in your PDF into static vector layers to protect your documents against unauthorized alterations.
100% Secure Local Processing Active
This tool runs entirely on your device via WebAssembly and browser Canvas. No files are ever sent to any remote server, ensuring complete data security.
How to Use
Upload a PDF containing writeable form fields, annotations, or digital signatures.
Click the 'Flatten PDF' button to lock interactive objects permanently.
Save the finalized, read-only PDF document to your device.
Core Scenarios
Securing Signed Commercial Agreements & Invoices
Flatten an interactive contract containing signature layers and price inputs, rendering it static to prevent post-signature tampering.
Ensuring Compatibility for Government Filings
Convert fillable official government PDF forms into flattened documents so they display identically on any third-party viewer or mobile device.
Baking Markup & Annotations into Print Blueprints
Merge architectural markup, sticky notes, and drawing comments directly into the base sheet to guarantee accurate print shop outputs.
Frequently Asked Questions
No. Flattening burns all interactive inputs directly into the background graphics, making the document permanently read-only.
Yes! Flattening locks interactive input controls while preserving clean underlying vector typography and copyable text.
Yes. All vector curves and embedded stamp graphics are preserved in their native high resolution without pixelation.
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