Improves support for searchable PDF documents.
Features
- Searchable PDFs now retain bookmarks, annotations, page orientation, etc. (use OcrPdfInput).
- Searchable PDFs now require less disk space.
- Added OcrPdfInput class for streamlined OCR of PDF documents.
- Added OcrImageInput class for streamlined OCR of images.
- Deprecated OcrInput class, although it will still be available for the foreseeable future.
