扁平化 PDF

Upload your PDF and the tool merges form fields, annotations, and interactive elements directly into the static page content. Fillable fields, checkboxes, comments, and markups become part of the page, and you can download the locked file immediately.

They're locked permanently into the page. After flattening, checkboxes, text fields, and other inputs become part of the static content, so recipients can't edit the data. This is ideal for finalizing completed forms before sharing or archiving signed documents.

Flattening prevents recipients from altering filled-in data and ensures the document displays consistently across every PDF viewer and printer. It's perfect for submitting official forms or distributing tamper-resistant, print-ready files that must look exactly as intended.

Yes. Beyond form fields, annotations such as comments and markups are merged into the page content too, so the visible result is preserved exactly without any editable layers remaining on top of the document.

Flattening is free with no account needed. All processing happens locally in your browser, so your completed forms and signed documents are never uploaded to a server. Your sensitive data stays private on your device.