🖋️
🔒
Flatten a PDF Form
Lock a completed PDF form so its fields can no longer be edited.
无需登录文件保持私密
将文件拖放到此处或点击浏览
PDF 无文件大小限制
你的文件永远不会离开你的设备。所有处理都在你的浏览器中本地进行。
Fill in a PDF form, then optionally flatten it so the fields can't be edited again. Everything happens in your browser — the PDF is never uploaded.
flattening tips
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Already filled a form elsewhere? Open it here, keep the values, and flatten to lock them in.
🖨️
Flattened forms print and display consistently across every PDF viewer.
🚫
After flattening, the form fields become part of the page — no more accidental edits.
🔒
Runs entirely in your browser.
工作原理
1
选择文件
Drop your file into the tool above. It stays entirely on your device — nothing is sent to any server.
2
处理
The tool processes your data instantly in your browser using JavaScript. No server, no waiting.
3
下载
Get your result instantly. Nothing is stored after you leave the page — complete privacy.
为什么选择我们的?
✓完全免费——永远没有隐藏费用
✓无需账号、邮箱或登录
✓文件永远不会离开你的设备
✓绝无文件大小限制
✓所有输出均无水印
