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OCR TOOLS · ONLINE
Make PDF searchable Online
Add an invisible English OCR text layer.
Add an invisible English OCR text layer. Start with the clearest source you have and compare names, numbers and punctuation with the original.
Search several known words after processing to verify OCR quality.
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Make PDF searchable is a narrow tool on purpose
Add an invisible English OCR text layer.
OCR accuracy starts with the source image
Clear, high-contrast printed text is easier to recognise than blur, skew, compression artefacts, handwriting or decorative fonts. OCR output should be proofread when names, numbers or legal wording matter.
The visible scan stays the visual source; OCR mistakes can exist invisibly underneath it, so search results may miss or misread some words.
start with the sharpest, straightest source you have
Use it when you need to start with the sharpest, straightest source you have; it also fits when you need to run recognition before doing any downstream formatting. If the job asks for more than that, split the workflow rather than making one tool do two different things.
The point where Make PDF searchable stops helping
If the PDF already contains selectable text, normal text extraction is faster and avoids recognition errors. OCR is for image-based text.
FAQ
What does Make PDF searchable actually do?
Add an invisible English OCR text layer.
What should I check before I use the output?
Clear, high-contrast printed text is easier to recognise than blur, skew, compression artefacts, handwriting or decorative fonts. OCR output should be proofread when names, numbers or legal wording matter. The visible scan stays the visual source; OCR mistakes can exist invisibly underneath it, so search results may miss or misread some words.
Related tools
After Make PDF searchable, proofread recognised text before using another conversion or document step. The OCR accuracy guide has broader context if you need it.