01
Choose fillable PDF
Select the PDF form or document with interactive elements. It is loaded into browser memory.
Form field locking
Flatten PDF forms in your browser.
Turn form fields and annotations into fixed page content.Create a static output copy so fields and annotations are prepared for final distribution.
Workflow preview
Browser-based where supportedInput
Fillable PDF
Runtime
Browser tab
Output
Static PDF
Field flatteningStatic final copyNo file upload required
Static copy workspace
Flatten fillable PDFs into final copies.
Inspect form fields and annotations, then export a static PDF copy for release or archive workflows.
Browse PDF
Local flatten workflow: field inspection, form flattening, output verification, and final PDF export run in this browser session.
How to use Flatten PDF
A clear browser-session workflow for flatten PDF work.
The interface should make the route visible: select files, perform the operation, and download the output from the same session.
02
Analyze fields
The workflow identifies form fields, annotations, and interactive elements that should become static content.
03
Create static PDF
Interactive elements are converted into a final copy and prepared for download.
Why local processing matters
Compare the processing route before using sensitive documents.
DocuStitch labels supported workflows around the browser session rather than hiding the path behind a generic cloud promise.
DocuStitch supported workflow
- Files selected on device
- Operation runs in browser session
- Output downloads from the tab
Typical cloud workflow
- Files uploaded to remote queue
- Processing depends on server retention policy
- Output returned after transfer
How it works
Flattening should make final-document intent explicit.
Field detectionThe workflow identifies form fields, annotations, and interactive elements that need to be represented statically.
Static outputFields are converted into final document content for easier distribution.
Visual preservationThe output aims to preserve the visible appearance while reducing editable form behavior.
Operator notes
A practical guide to secure PDF flattening
Flattening PDF forms is useful when you need a final, non-editable copy for distribution or archiving. Many online tools require uploading sensitive forms to remote servers. DocuStitch keeps standard flattening workflows local.
Why local flattening matters
When you flatten PDFs with DocuStitch, processing happens in the browser session so form data does not need a separate upload queue.
Final-copy preparation
The workflow converts interactive form behavior into static output while preserving the visible document as much as possible.
01
Field detection
Identifies form fields, annotations, and interactive elements that need static representation.
02
Visual preservation
Aims to preserve the appearance of the form while preparing a static output copy.
03
Complete output copy
Creates a new flattened PDF for distribution and archive workflows.
04
Local processing
Runs in your browser session without a third-party upload step for standard workflows.
FAQ
Frequently asked questions
Everything you need to know about Flatten PDF.
Is it safe to flatten sensitive forms online?
With DocuStitch, standard flattening runs locally in your browser session instead of requiring a third-party upload step.
Can the flattened form be edited again?
Flattening is intended to create a static copy. Keep the original file if you may need editable fields later.
Will the flattened PDF look the same?
The workflow aims to preserve the visible appearance while reducing interactive form behavior. Results depend on the source PDF.
What types of elements are flattened?
The workflow targets form fields, annotations, comments, and other interactive elements where supported.
Do I need to install any software?
No. The tool runs in modern browsers with WebAssembly support.
Knowledge hub
Return to workspace
Start processing in your browser.
Supported workflows run locally in your browser session, so you can finish document tasks without a cloud upload step.