PDF涂黑
永久遮盖敏感词语。
将文件拖到此处
或
支持格式: PDF
涂黑后的页面会重新渲染为图片，因此隐藏的文字无法被恢复。
免费 · 无需注册 · 大多数工具文件不离开您的设备
此工具完全在您的浏览器中运行——文件不会被上传。
使用方法
1
上传
2
设置
3
下载
常见问题
Is PDF涂黑 free?
Yes. PDF涂黑 is completely free with no sign-up, no watermark and no daily limit. There is no paid tier — every tool on iAdorePDF is free to use as often as you like.
Is PDF涂黑 safe and private?
Yes. PDF涂黑 runs entirely inside your browser, so your file is never uploaded to any server. Nothing leaves your device, which makes it safe for confidential documents.
Do I need to install any software?
No. PDF涂黑 works in any modern browser — Chrome, Safari, Firefox or Edge. There is nothing to download and no account to create.
Does PDF涂黑 work on a phone?
Yes. PDF涂黑 is built mobile-first and works on iPhone and Android exactly as it does on a computer, straight from the browser.
How do I use PDF涂黑?
Open the page, drop your file into the upload box (or tap Select file), choose your options, then press the start button. Your result downloads straight to your device.
Is there a file size limit?
There is no server limit because the work happens on your own device. The practical ceiling is your device memory; files up to about 100 MB are comfortable on most phones and much larger on a computer.