OCR Conversion Services

Professional OCR Conversion Services with Expert Manual Correction for Reliable Searchable Output

We provide expert OCR conversion outsourcing solutions for businesses, publishers, legal firms, healthcare providers and government offices that need scanned documents, image-based PDFs and photographed materials converted into searchable, editable and structured digital text with the accuracy that research, editing, system import and compliance use cases require. Raw OCR output without manual correction is rarely accurate enough for professional use — character recognition errors, structural problems and formatting failures accumulate across every page and undermine the usefulness of the converted output.

Our professional offshore OCR team in India combines industry-standard OCR processing with systematic manual correction — reviewing every page of output for character errors, structural problems, formatting inconsistencies and missing content — so the final text is reliably accurate rather than requiring extensive post-conversion cleanup from your team.

Both single-document conversions and large-scale archive OCR projects are supported. Every new OCR project begins with a source quality assessment on a sample of your documents so you receive a realistic accuracy expectation before production is committed.

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5000+ Completed Projects

90% Returning Clients

16+ Years Experience

45+ Countries Served

50+ Professionals Team

Services We Offer

Expert OCR conversion solutions that produce accurate, immediately usable text from any scanned source

Source quality assessment before production
OCR engine processing with appropriate settings
Page-by-page manual error correction
Structure and formatting preservation
Output format preparation for your workflow
Quality review before every delivery

OCR accuracy is primarily determined by source quality and document characteristics — scanning resolution, font clarity, layout complexity and physical document condition. Good source material at adequate resolution with clear, standard fonts achieves high initial OCR accuracy. Degraded, complex or non-standard sources require proportionally more manual correction effort.

We always combine OCR processing with manual correction — never treating automated output as a completed deliverable. The correction process is systematic, not sampling-based: every page of output is reviewed against the source for character errors, structural problems and formatting failures.

As a professional OCR conversion outsourcing company in India, SDES provides cost-effective, high-volume OCR processing and correction capacity that makes systematic, accurate OCR conversion affordable for archive projects where doing the job correctly matters.

OCR Conversion Services We Offer

We convert scanned documents and image-based files into searchable, editable text with manual review, formatting cleanup and exception control where OCR alone is not reliable.

Scanned PDF to searchable PDF conversion

We convert scanned PDFs into searchable PDF files using OCR and manual quality checks where required. This is useful for contracts, reports, manuals, invoices, forms, records, books and archived documents that currently exist only as image scans. We review pages for skew, orientation, missing text, low contrast and OCR recognition errors, then deliver searchable files with page order and document structure preserved.

OCR to Word, Excel and text output

We extract text from scanned documents, images and PDF files into Word, Excel, CSV, TXT or other editable formats. Tables, forms, lists and paragraph text are handled according to your output requirements. OCR software often struggles with multi-column pages, stamps, handwritten notes, shaded backgrounds and broken scans, so our team performs manual correction for fields and text where accuracy matters.

Form OCR and structured data capture

We convert scanned forms into structured datasets by capturing field labels, checkboxes, typed values, handwritten references where legible and form metadata. This can apply to surveys, applications, medical forms, insurance forms, HR forms, claim forms and operational paperwork. When OCR output is uncertain or handwriting is unreadable, the field is flagged rather than forced into the final data file.

Book, manual and archive OCR cleanup

We process scanned books, manuals, reports, directories, legal archives and historical records into searchable or editable files. Page headers, footers, page numbers, footnotes, tables and section breaks can be preserved based on your requirements. OCR errors caused by old print, curved pages, faded ink or unusual fonts are corrected manually where included in the project scope.

OCR quality review and text correction

We review OCR output against the source document to correct recognition mistakes, broken words, incorrect symbols, missing characters, wrong line breaks and table misalignment. The level of review can be sample-based, key-field review or full text proofreading depending on your accuracy requirement and budget. This makes the output more reliable than an automated OCR export with no human correction.

Process, Quality and Security

How we convert OCR files with manual review where accuracy matters

1. Source sample review

We inspect scan quality, language, layout, page count, handwriting level, tables, output format and accuracy expectation before quoting production.

2. Secure file setup

NDA and transfer method are confirmed before documents are shared, especially for legal, medical, financial or personal records.

3. Pilot OCR conversion

A representative sample is converted first so you can check searchability, formatting, text accuracy and table handling.

4. Batch OCR processing

Documents are processed by folder, document type, page range, language, client file group or output format for controlled tracking.

5. Manual correction and QA

OCR output is reviewed for missing text, wrong characters, broken paragraphs, table errors, page order and unreadable fields according to scope.

6. Final delivery with exception notes

Clean files are delivered with unreadable pages, uncertain handwriting, damaged scans and source-quality issues listed separately.

📂 Source formats we accept

Scanned PDF documents (any resolution)
Image files (TIFF, JPEG, PNG, BMP)
Multi-page document image collections
Image-based eBook and publication files
Legacy microfilm and microfiche scans

📤 Delivery formats

Searchable PDF with corrected text layer
Editable Word and plain text documents
Structured data CSV and Excel output
XML structured content for system import
Correction report and accuracy summary

OCR conversion quality depends on more than running software. We check text recognition, page order, formatting, searchability, table alignment and unreadable fields against the original document.

Scanned files may include confidential legal, medical, financial or client information. Documents are handled under NDA through the secure transfer and retention method agreed with you.

We do not silently fill unreadable text or invent missing values. Source-quality problems, handwriting uncertainty and damaged pages are documented so you know exactly what could not be confirmed.

🔎 Searchable PDF OCR applied

📝 Editable Text Word/Excel output

📊 Tables Layout checked

✅ Manual QA Errors corrected

🔐 File Secure NDA workflow

⚠️ Unreadable Text Logged clearly

Have documents that need accurate OCR conversion with manual correction?

Send a sample of your source documents and describe your target format. We convert a free sample and return the output so you can verify accuracy and correction quality before committing to the full project.

Get a Free Sample Conversion →

Free OCR sample conversion returned within 24 hours.

Why Outsource to SDES?

Why organisations outsource OCR, PDF and document conversion to SDES India

Source quality assessed upfront — realistic accuracy expectations given, not generic promises
Manual correction applied to every page — never sampling-based review only
Output format tested against your target system before full production
Schema validation included in every XML and structured conversion project
Large archive conversions tracked by coverage and delivered in batches
Exception documentation for pages where source limits achievable accuracy

Automated conversion tools produce output that requires correction. The gap between raw OCR output and reliably accurate, searchable text is significant and source-dependent — it only matters if you account for it. Our process always combines conversion tools with systematic manual review so the output you receive is ready to use rather than ready to correct.

We give clients realistic accuracy expectations based on their actual source files before any project commitment. If your source has characteristics that limit achievable accuracy, we tell you upfront rather than quoting a generic accuracy figure that does not apply to your specific documents.

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Industries We Support

Professional OCR solutions across document-intensive industries

eCommerce

Online retailers and marketplace sellers that need accurate product data, catalog management, marketplace listing support and order management data entry handled consistently at scale without burdening their internal team.

Healthcare

Medical practices, billing companies and healthcare providers that handle patient records, clinical data, insurance information and billing documentation requiring precise entry and confidential handling.

Real Estate

Property firms, real estate agencies and title companies managing listing details, transaction records, deed data and client databases across large and growing portfolios.

Finance

Accounting firms, finance departments and financial services companies processing invoices, statements, claims, reconciliation records and financial document data at recurring volume.

Legal

Law firms and legal departments digitising and managing case files, contracts, compliance records, court documents and legal correspondence with appropriate confidentiality controls.

Logistics

Freight companies, 3PLs and supply chain teams maintaining accurate shipment records, supplier data, inventory counts and delivery documentation across high-volume operations.

Manufacturing

Manufacturers needing product specifications, supplier records, quality inspection data and inventory management data entry for production and procurement systems.

Agencies

Marketing agencies, digital agencies and business services firms outsourcing data entry, list building, research and campaign data management to a reliable offshore partner.

Client Feedback

What clients say about our OCR conversion work

★★★★★

220 journal articles needed JATS XML conversion for PubMed Central. SDES assessed a sample, ran a pilot and validated before production. PMC submission achieved 97% first-pass acceptance. The three needing revision had missing DOI data in our source — SDES flagged this during production, not after submission.

Samuel I. — Editorial Production Manager Biomedical Publisher, USA

★★★★★

1,200 mixed PDF financial statements needed consistent Excel extraction. SDES identified the source type distribution, gave us different accuracy expectations for each type and delivered with source type indicated. That transparency let us apply the right level of review to each segment.

Evie V. — Finance Systems Manager Accounting Practice, UK

★★★★★

A 40-year archive of legal correspondence — 28,000 scanned pages — had been digitised without metadata. SDES converted and indexed the full collection in six weeks. OCR correction was applied consistently and indexing was accurate throughout, not just on recent documents.

Mason N. — Knowledge Management Director Litigation Firm, Australia

FAQs

Questions clients ask before outsourcing OCR conversion

Do you always correct OCR output manually?

Yes. Manual correction is always part of our OCR process. We never deliver raw automated OCR output without review and correction.

What OCR accuracy level can I expect?

Accuracy depends on source quality. We assess your specific documents before quoting and provide a realistic estimate. We always apply correction to improve initial accuracy.

Can you handle documents with mixed fonts and complex layouts?

Yes. Mixed fonts, multi-column layouts and complex document structures are handled with appropriate processing settings and additional manual correction.

Can you create searchable PDFs without changing the visual appearance of the pages?

Yes. OCR text layers are added to scanned PDFs invisibly, preserving the original page image appearance.

Can you handle large archive OCR projects?

Yes. Large archive OCR is processed in batches with quality consistency throughout and progress reporting provided.

What output formats are available?

Searchable PDF, Word, plain text, CSV, Excel, XML or any custom format your workflow requires.

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