What is OCR and why does an archive need it?

OCR (optical character recognition) reads the text visible in a scanned image and embeds it as selectable, searchable text in the PDF. Without OCR, a scanned document is just a photograph — no search engine or DMS can read its content.

Will adding a text layer break compatibility with my document management system?

No. OCR output files are standard PDFs fully compatible with SharePoint, iManage, Laserfiche, M-Files, and other DMS platforms. The added text layer is what enables those systems to index the document content.

Is it safe to run OCR on a file that might already be searchable?

Yes. Deliteful skips pages that already contain a text layer, so running OCR on a mixed archive will not corrupt or duplicate text on files that were already digitally created.

How does fast mode differ from standard mode for archiving?

Fast mode processes files more quickly with a modest reduction in OCR accuracy. For archiving use cases where you need documents to be broadly searchable rather than perfectly transcribed, fast mode is a practical choice for large batch jobs.

Build a Fully Searchable Document Archive with OCR

A scanned document archive without OCR is just an expensive image library — visually preserved but impossible to search, index, or retrieve by content. Deliteful's OCR tool adds a searchable text layer to every scanned PDF in your archive, turning years of paper records into a content-queryable document repository.

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Organizations that digitized paper records by scanning them often discover that their archive is functionally unsearchable — retrieval depends entirely on how well the file was named at scan time. Locating a specific contract from 2018, a particular invoice, or a compliance record means browsing folder trees instead of searching content. OCR retroactively fixes this at the document level: once a text layer exists, every DMS, SharePoint library, or document search platform can index the content automatically.

Deliteful processes batches of scanned PDFs and returns output files with a hidden text layer added to each page that contained only image content. Pages already containing text are skipped, making the tool safe to run on mixed archives where some files were already digitally created. For large archiving projects, fast mode reduces processing time significantly while still producing a usable text layer for search and indexing purposes. Output PDFs are drop-in replacements for the originals — same file format, same visual appearance, fully compatible with any downstream system.

How it works

1
Create a free account
Sign up with Google in about 3 clicks — no credit card required.
2
Upload a batch of scanned PDFs
Add the scanned archive files you want to make searchable.
3
Select language and processing mode
Choose the document language and decide between standard accuracy or fast mode for bulk jobs.
4
Download searchable output files
Replace your original scans with the OCR-processed versions in your archive or DMS.

Frequently asked questions

What is OCR and why does an archive need it?: OCR (optical character recognition) reads the text visible in a scanned image and embeds it as selectable, searchable text in the PDF. Without OCR, a scanned document is just a photograph — no search engine or DMS can read its content.
Will adding a text layer break compatibility with my document management system?: No. OCR output files are standard PDFs fully compatible with SharePoint, iManage, Laserfiche, M-Files, and other DMS platforms. The added text layer is what enables those systems to index the document content.
Is it safe to run OCR on a file that might already be searchable?: Yes. Deliteful skips pages that already contain a text layer, so running OCR on a mixed archive will not corrupt or duplicate text on files that were already digitally created.
How does fast mode differ from standard mode for archiving?: Fast mode processes files more quickly with a modest reduction in OCR accuracy. For archiving use cases where you need documents to be broadly searchable rather than perfectly transcribed, fast mode is a practical choice for large batch jobs.

Create your free Deliteful account with Google and start converting your scanned archive into a fully searchable document repository.