Flatten PDF forms and annotations into static, non-editable content — print-safe and tamper-proof.
PDF Flattener is a free online tool that converts interactive PDF form fields and annotations into static, non-editable content. When you flatten a PDF, text inputs, checkboxes, dropdown menus, and digital signatures become permanent parts of the page — they can no longer be changed. This is essential before printing, archiving, or sharing filled forms. The tool runs entirely in your browser for complete privacy.
Click the upload area or drag and drop a PDF with interactive forms or annotations.
The tool shows how many interactive form fields were detected in your document.
Click the Flatten button or press Ctrl+Enter. All form fields and annotations become static content.
Download the flattened PDF. Forms are now permanent and cannot be edited.
Open the downloaded PDF to confirm that all fields display correctly as static text.
Combine multiple PDF files into one document. Drag to reorder pages before merging. 100% browser-based.
Reduce PDF file size by optimizing images and removing metadata. See before/after compression ratio.
Split a PDF into individual pages or custom page ranges. Extract specific pages instantly.
Convert PDF pages to high-quality PNG, JPEG or WebP images. Batch export all pages at once.
Convert JPEG, PNG and WebP images to a single PDF document. Custom page size and margins.
Extract all text content from PDF files. Preserves paragraphs and formatting structure.