Flatten PDF
Flatten form fields, annotations, and layers into a static PDF — permanent and non-editable. Free, instant, and completely private.
Private & Secure
Flattening happens entirely in your browser. Your PDF never leaves your device.
Lock In Content
Bake form fills, signatures, and annotations into the page so nothing can be changed.
Frequently Asked Questions
Upload your PDF to Toolsz Flatten PDF, and the tool merges all form fields, annotations, and layers into a single static, non-editable layer. Download the flattened PDF — no signup, no watermarks, 100% client-side.
Flattening a PDF merges all interactive elements — form fields, annotations, comments, and layers — into a static, non-editable document. This ensures the document appears the same on all viewers and prevents accidental edits. Toolsz does this free.
Toolsz is one of the only free PDF flattening tools. Most PDF flatteners are paid features in Adobe Acrobat or other premium software. Toolsz flattens your PDF completely free with no signup, no watermarks, and client-side processing for privacy.