使扫描和基于图像的PDF可搜索和可选择。
点击或拖放扫描的PDF到此处
仅支持PDF · 最大50MB · 处理可能需要一分钟
We render each page to an image, run Tesseract OCR over it, and rebuild a PDF with an invisible text layer behind the original image. The page looks identical, but text is now selectable, copyable, and searchable.
OCR accuracy depends on scan quality. Sharp 300 DPI scans of typed text approach 99%; faded photocopies and handwriting are harder.