Crater — OCR → Searchable PDF

Crater — OCR → Searchable PDF

Drag & drop images (or click) to upload. This single-file app will run OCR in your browser (Tesseract.js) and produce a searchable PDF that preserves the original images and places an invisible text layer on top.

Click or drag images here (PNG, JPG). Multiple images allowed.
Note: OCR happens client-side in your browser. For many pages or very large images, this can be slow. If you need PDF → OCR (existing PDF pages), first convert pages to images (there are server tools or local apps for that).