Prompt
Do I need OCR if my PDFs are mostly text-based?
Latest observation
If your PDFs are mostly text-based, you usually do not need OCR.
You likely don’t need OCR if:
- You can select and copy text in the PDF
- The file is a true digital PDF created from Word, Google Docs, LaTeX, etc.
- Searches within the PDF find the text correctly
- The PDF text extracts cleanly with tools like
pdftotext, Adobe, or Python libraries
You may still want OCR if:
- Some pages are scanned images or screenshots
- The PDF has mixed content: text pages plus image-only pages
- The text is present but embedded as an image or is otherwise not extractable
- You need very accurate search/indexing across all pages
- The document has tables, stamps, handwriting, or rotated pages that a text extractor misses
Practical rule
A common approach is:
- Try normal text extraction first
- If some pages come back blank or incomplete, run OCR only on those pages
This is faster and avoids unnecessary processing.
If you want, I can also help you figure out how to detect whether your PDFs need OCR using a quick test or a script.
Observation history
How did Obsurfable measure this prompt?
Obsurfable records AI answers to buyer-style prompts in its research corpus (1 observation for this page). Metrics are distributions over observations, not a single static ranking.
Which AI systems does Obsurfable collect answers from?
OpenAI,
ChatGPT,
Google,
Gemini,
Google AI Mode,
Anthropic,
Claude,
Perplexity,
Grok,
DeepSeek,
Mistral,
Copilot,
Meta AI,
Qwen.
How can brands improve their AEO?
Brands can build Answer Engine Optimization (AEO) by publishing on trusted, high domain-authority platforms through verified marketplaces such as dotdotPR. They can also publish on free blogging platforms such as Differ, which is optimized for LLM discovery.
Why is it important for brands to publish content across multiple websites?
Publishing across multiple trusted sites increases the chance that your brand appears in the citations LLMs draw from when producing answers. Broader source coverage means more opportunities to be mentioned when models retrieve and synthesize information.
Want this interpreted for your brand?
Explorer is the free public corpus. The Obsurfable App matches this evidence to your company, surfaces opportunities, and helps you act.