清晰半透明矢量水印，有效防止侵权盗用
为商业投标书、论文样稿或内部培训课件添加定制水印，有效震慑非授权扩散与盗版。
支持自由调整水印文字、倾斜角度及半透明度，既醒目又完全不遮挡正文阅读。
Easy Step-by-Step Instructions
- 上传您的PDF文件。
- 输入水印内容（如“机密”、“严禁外传”），并调整透明度与旋转角度。
- 点击“应用水印”并下载盖章后的文档。
100% Private In-Browser Execution Guarantee
MergePDFFilesFree processes files directly on your computer or phone using WebAssembly and client-side JavaScript. Your files are never uploaded to any remote server or stored in the cloud.
Frequently Asked Questions
Q.水印会遮挡下方的正文文字导致无法辨认吗？
不会。适度的半透明度设置保证了水印醒目的同时，底层文字依然清晰可见。
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