去除水印
来自PDF逐页处理。
扫描文档、合同、表单，最多 25 页。可搜索文本得以保留。
这款免费 AI PDF 去水印工具可从最大 50 MB、25 页的 PDF 中抹除 CONFIDENTIAL 印章、草稿和样本叠加层、扫描收据以及页面级标记。可搜索文本得以保留，无需注册，上传文件会在 24 小时内删除。输出仍是原生的可搜索 PDF。
这是一款文件处理工具，不授予任何权利。请仅将其用于您拥有或已获授权可修改的内容。您有责任遵守版权、合同、平台条款和规则以及适用法律，并且不得将其用于侵犯权利、未经授权绕过限制或歪曲内容的来源或所有权。 阅读我们的服务条款
基于您实际看到的水印进行训练。
我们的模型在1400万对带标签的PDF数据上进行了微调,涵盖了实际场景中所有常见的PDF水印模式。以下是模型最擅长处理的来源:
Match the workflow to the PDF you actually have.
Use this page to handle text-layer PDFs, scanned PDFs, repeated page marks, and common stamp removal with clear expectations before upload.
Digital PDF vs scanned PDF
Text-layer PDFs can often preserve selectable text. Scanned PDFs are treated like page images and may need OCR after cleanup.
Repeated page watermarks
Find and remove the same watermark pattern across many pages instead of cleaning each page manually.
Draft, confidential, and sample stamps
Target the exact PDF stamp intents people search for: DRAFT, CONFIDENTIAL, SAMPLE, proof, and preview marks.
Layout preservation
The goal is to keep page dimensions, margins, and visual structure intact while changing only the marked area.
从上传到干净输出,只需三步。
为这些工作而生。
What to know before removing a PDF watermark.
PDFs vary: some have removable layers, some are scanned images, and some include signatures or protected content. This section sets expectations clearly.
Best inputs
Clean, unlocked PDFs with clear repeated marks produce the most predictable results. Text-layer PDFs preserve searchable text best.
OCR and scanned pages
Scanned PDFs are processed visually. Searchable text can depend on OCR quality after cleanup.
Private file window
Uploads are transferred securely and temporary processed files are scheduled for deletion after one hour.
Hard cases
Protected PDFs, signatures, marks over dense tables, and low-resolution scans may need manual review or may not clean perfectly.