Make Chinese PDF Searchable
Chinese (中文) PDF to Searchable PDF — Free
Make scanned Chinese PDFs searchable online for free. Embeds an invisible text layer behind the original scan for Ctrl+F keyword search and text copying in Chinese.
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PDF, PNG, JPG, WebP, BMP, HEIC
PDF 最大 1 GB · 图片最大 20 MB
拍出清晰照片的提示
- 将页面平放。
- 光线均匀，避免阴影。
- 关闭闪光灯，避免反光。
- 让页面填满取景框。
Dual-layer searchable PDF
Adds an invisible, machine-readable text layer behind the original scan for full-text search and copy.
Ctrl+F find & highlight
Instantly search words, sentences, and numbers across large multi-page scanned PDF documents.
Original scan kept
The visible page stays as scanned, with stamps and signatures, and the text layer sits behind it.
Multi-page batch speed
Large books and documents are split into chunks and processed in parallel.
Accurate text coordinates
Precise bounding box alignment ensures selected text corresponds directly to visible words.
Free account for PDFs
PDFs need a free account. See the pricing page for the current monthly allowance.
Frequently Asked Questions
How do I make a scanned Chinese PDF searchable?
Upload your scanned Chinese document or book PDF to FastOCR. Our AI automatically extracts text coordinates across all pages and embeds an invisible text layer behind the original scan, enabling Ctrl+F search in Adobe Acrobat and browsers.
Will making my Chinese PDF searchable change how it looks?
No. FastOCR generates dual-layer searchable PDFs where the original scan stays as the visible page. Colors, stamps, signatures, and page layouts look the same, while the text becomes selectable and searchable.
Can I search Chinese text with Ctrl+F in Adobe Acrobat?
Yes. The output file is a standard dual-layer PDF compatible with Adobe Acrobat, Apple Preview, and all modern web browsers.
How many Chinese PDF pages can I convert for free?
Registered accounts include a monthly PDF page allowance, and page packs are available for larger volumes. See the pricing page for current limits.