Choose the output by what must survive the conversion
A searchable PDF keeps the page image and adds a text layer. Plain text removes the visual page and is easier to edit, but usually loses layout.
By the end, you can choose between visual fidelity and easy text reuse, while documenting page identity, reading order, corrections, and the source needed to resolve ambiguity.
Apply the decision with PDF to Text. Then test the tradeoff against OCR Output Formats: TXT, JSON, TSV, hOCR, ALTO and PDF and OCR, Accessibility and Reading Order.
Once the output type is clear, compare OCR tools by source and workflow before processing the full document.
Output tradeoffs
| Need | Better starting output | Required review |
|---|---|---|
| Visual evidence | Searchable PDF | Text-layer alignment |
| Editing or analysis | Plain text | Lost layout and page context |
| Accessibility | Tagged, remediated document | Semantics and reading order |
| Structured extraction | Coordinate-aware JSON, TSV, hOCR, or ALTO | Schema and field relationships |
Test the output with the action a reader will perform
For a searchable PDF, search a known phrase, select a sentence across line breaks, copy a multi-column passage, and compare the selection highlight with the visible words. The page can look perfect while the hidden text layer is shifted, incomplete, or ordered incorrectly.
For plain text, confirm page markers, paragraph boundaries, hyphen handling, and the link back to the scan. Plain text is easier to correct and reuse, but it cannot resolve an ambiguous character once the visual source is detached. Keep both outputs when users need clean text and the original page as evidence.
- Choose by the next task
- Test search and copy behavior
- Preserve page identity and provenance
Compare visual evidence, editability, search, and structure
Choose searchable PDF for visual reference
It preserves the scan while enabling search and selection. Misaligned text layers and incorrect reading order can still make copy, search, and assistive use unreliable.
Choose plain text for reuse
Plain text is compact and editable. It cannot preserve table structure, images, typography, or the visual evidence needed to resolve ambiguous characters.
Keep provenance
Retain a link or identifier for the original scan, page boundaries, processing date, and corrections when the text enters a larger workflow.
Output selection questions
- Define the next task
- Test text selection and search
- Inspect copy order
- Keep page identifiers
- Retain the original scan
Output labels hide important variation
A searchable PDF may contain a poor text layer, and plain text may lose meaningful order. File type alone says nothing about selection alignment, tags, tables, or assistive reading sequence.
What to test after reading
The cited specifications and accessibility guidance describe expected structures. Test the exported file in the software and assistive workflow that will actually consume it.