PDFMech

Private browser PDF editing

Flatten PDF forms online for free.

Convert supported AcroForm fields into fixed page content locally for consistent viewing, sharing, and printing.

Choose a PDF form to flatten

How to flatten PDF form fields

  1. Choose a completed PDF form.
  2. Review the editable AcroForm fields found.
  3. Flatten the current field appearances locally.
  4. Download a validated non-editable copy.

AcroForm fields become fixed content

Supported text fields, checkboxes, radio buttons, and dropdown appearances become part of the page and are no longer editable.

Private local form processing

PDFMech inspects and flattens the form in your browser without uploading it to a document-processing server.

Clear product limits

This tool flattens AcroForm fields, not arbitrary annotations, layers, scripts, or XFA forms.

Flatten PDF forms online for free FAQ

Is my PDF uploaded?

No. PDFMech inspects, flattens, validates, and creates the output in your browser.

Will the form fields still be editable?

No. Supported field appearances become fixed page content in the downloaded copy.

Does flattening replace my original file?

No. PDFMech creates a separate flattened PDF and leaves the source file unchanged.

Are XFA forms supported?

No. XFA forms are detected and blocked because this browser-local method cannot preserve them reliably.