NDA available
If your company requires a confidentiality agreement before sharing sample files, that can be arranged.
Custom data conversion software for your exact files
Get Your Own Application to Convert and Archive Business Data
Share a few sample files. I build a private application that processes your PDFs, Excel files, text files, XML, CSVs, scanned documents, and legacy exports inside your own company environment. No cloud uploads, no third-party handling, and no recurring conversion bill.
Free trial app: 5 files at a time
One-time payment for full version
Keep production data in-house
PDF
Excel
Text Files
CSV
Scanned Documents
Database
Custom Application
A private application built from your sample files
A custom application is software made specifically for your documents and your required output. You send sample files and explain the result you need. I build the application, your team tests it, and the final version runs inside your office, computer, or server.
This means your full archive does not need to be uploaded to another company. You can process files, validate results, and store the converted data on your own systems.
Only sample files are needed
You share a few representative files and the output you want. The full archive can stay with you.
Your team runs the software
After delivery, the application works on your own computer, local network, or server.
No recurring conversion bill
Pay once for the application instead of paying another company every time files need processing.
Built for speed and volume
The paid version can process full batches without the 5-file trial limit.
Old way: outsourcing every conversion
New way: your own conversion application
Send your confidential archive to an outside company.
Keep files on your own systems and run the application internally.
Pay again for every new batch, project, or repeated conversion.
Make a one-time payment for software that keeps working.
Wait for vendor queues, manual checks, and file transfer cycles.
Process files whenever your team needs them, at local machine speed.
Accept extra risk while files move between companies.
Reduce data leakage risk because production files do not leave you.
Trust & Security
Built for companies that cannot risk data leakage
The working idea is simple: share only the samples needed to build and test the software, then keep production processing on your own systems.
Sample files only
A few representative files are enough to build the trial. Your full archive does not need to be shared.
Production data stays with you
The full application can process real business files inside your own company environment.
Local or server deployment
Use the application on a desktop computer, local machine, internal network, or company server.
Trusted by Global Enterprises
Project experience involving recognized enterprise organizations
Deutsche Bank
Voith
Commerzbank
Busch Group
MB Energy Holding
Coca-Cola
Many More Enterprise Clients
Experience gained while delivering enterprise data transformation projects through my employer.
About Me
Meet Your Custom Data Application Specialist
I am a Data Scientist with over 6 years of professional experience specializing in enterprise-scale legacy data conversion, extraction, cleansing, and automation. I build practical applications that help companies process their own sensitive files without sending full archives to another vendor.
Throughout my career, I have contributed to large-scale data modernization initiatives involving globally recognized organizations across the banking, manufacturing, logistics, energy, and consumer goods sectors.
My expertise includes transforming complex legacy information stored across PDFs, Excel spreadsheets, scanned documents, text files, CSV files, reports, and other structured and unstructured sources into clean, normalized, database-ready datasets and repeatable in-house processing tools.
My work helps organizations modernize legacy systems, improve data quality, reduce repeated outsourcing costs, and prepare reliable datasets for ERP systems, CRM platforms, business intelligence solutions, and SQL databases.
I have worked on projects where precision, consistency, and data integrity were business-critical, delivering clean, validated datasets for enterprise-scale migration initiatives.
Every project is delivered with a strong focus on precision, consistency, validation, and data integrity to ensure the final software and converted data are ready for immediate business use.
Experienced in processing multilingual datasets, including:
EnglishGermanFrenchAdditional European document formats
Services
Everything needed to turn messy files into your own working software
From file analysis to extraction rules, validation, output design, and in-house deployment, the service is focused on making repeat data conversion easy for your own team.
Custom Data Conversion Application
Get a private desktop or server application built around your sample files, business rules, and required output format.
Legacy Data Extraction
Recover critical fields from legacy files, reports, exports, and archived operational records.
PDF Data Extraction
Convert complex PDFs into structured tables while preserving every valuable data point.
Excel Data Processing
Normalize multi-sheet workbooks, inconsistent columns, formulas, and merged legacy layouts.
Text File Conversion
Parse plain text, logs, fixed-width files, and semi-structured exports into clean datasets.
Database-Ready Output
Prepare validated, normalized outputs aligned to relational or analytics database schemas.
Data Cleansing
Standardize inconsistent naming, formats, missing fields, duplicate rows, and noisy values.
Data Validation
Apply rule-based checks, cross-field validation, completeness review, and anomaly detection.
OCR Data Cleanup
Clean OCR outputs from scanned PDFs and images for accurate downstream processing.
Multilingual Data Processing
Process English, German, French, and additional European document conventions.
In-House Deployment Support
Set up the final application so your team can process and archive data on your own systems.
Structured Dataset Creation
Create consistent tables with clean headers, formats, field mapping, and referential clarity.
Data Quality Assurance
Run final checks for integrity, consistency, completeness, and delivery-readiness.
How It Works
Start with a small free trial, then scale inside your company
The trial application proves the logic on real files. The full application removes the trial limit and lets your team process future batches whenever needed.
Step 1
Send Sample Files
Step 2
Confirm Required Output
Step 3
Build Free Trial App
Step 4
Test Up To 5 Files
Step 5
Approve The Results
Step 6
Receive Full Application
Step 7
Run It In-House
Step 8
Process Unlimited Batches
Who This Is For
Useful when file conversion has become a business bottleneck
This is best for teams that have sensitive files, repeated manual conversion work, large archives, or vendor quotes that feel too high for a repeatable task.
Thousands of old files
For companies with large archives of PDFs, Excel workbooks, text reports, XML files, scans, or legacy exports.
Sensitive company data
For teams that cannot safely send production files to outside processors or online conversion tools.
Repeated conversion work
For businesses that receive the same file type again and again and need a faster repeatable workflow.
Expensive vendor quotes
For organizations being asked to pay large recurring fees for conversion work that software could automate.
Manual copy-paste teams
For teams spending hours opening files, copying values, correcting formats, and preparing spreadsheets.
ENGAGEMENT MODELS
Try the custom software first, then pay once for the full application
The trial is free and limited to 5 files at a time. Once the result is approved, the paid version is built for ongoing in-house use.
Usually far cheaper than repeated outsourcing.
One-time custom quote after reviewing your sample files.
Trial application proves the conversion logic before you buy the full version.
Free Trial Application
- Built from your sample files
- Processes up to 5 files at a time
- Shows the real converted output
- Confirms extraction rules before payment
- Good for internal review and approval
- No long contract required
- Clear upgrade path to full software
- Email support during evaluation
Recommended
Full Custom Application
- One-time payment
- Lifetime working application
- No per-file processing limit
- Runs on your computer or server
- No third-party file uploads
- High-speed batch processing
- Custom validation and business rules
- CSV, Excel, SQL-ready, or custom output
- Designed for your exact file structure
- Can reduce repeated outsourcing costs
Enterprise In-House System
- Multiple departments or file types
- Local server or internal network setup
- Archive processing at business scale
- Database import preparation
- Role-specific output formats
- Audit-friendly logs and summaries
- Training for internal operators
- Optional source-code handover
- Support for future format changes
- Built for sensitive business data
Popular Blogs
View all blogsUseful reading on legacy data conversion and migration
Common Challenges in Legacy Data Migration
Explore the most common legacy data migration challenges, from inconsistent source formats and OCR cleanup to duplicate records, missing identifiers, and data validation.
Read more
How To Prepare Data for Legacy System Conversion
Learn how to prepare source files, field mappings, validation rules, and document samples before starting a legacy system conversion project to ensure accurate and efficient data migration.
Read more
PDF to Database Conversion: A Step-by-Step Guide
Discover the complete PDF to database conversion process, from analyzing documents and extracting data to validation, cleansing, and database import. Learn best practices for accurate and reliable data conversion.
Read more
What Is Legacy Data Conversion?
Learn what legacy data conversion is, why businesses need it, how the process works, and how legacy information is transformed into clean, structured, database-ready data.
Read moreWhy Choose Me
Precision, structure, and enterprise delivery discipline
Production Data Stays In-House
Enterprise Experience
Built for Large Archives
Clean Database-Ready Output
Multilingual Expertise
One-Time Application Delivery
Fast Trial Build
Professional Communication
Trial Before Full Payment
No Third-Party File Sharing
Testimonials
Testimonials from our Reputed Customers
What our customers are saying about the service and experience.
"The delivered datasets were exceptionally clean and accurately structured. The level of detail exceeded expectations."
Operations Manager
Manufacturing Sector
"Outstanding data transformation quality. Complex legacy files were converted into perfectly organized database-ready tables."
Senior Business Analyst
Financial Services
"The professionalism, precision, and communication throughout the project were excellent."
Project Lead
Enterprise Solutions
"One of the most accurate data extraction services we've experienced."
Data Migration Consultant
Technology Industry
Statistics
Built for private, repeatable conversion at scale
0+
Years Experience
0%
Data Integrity Focus
Billions
Records Experience
1x
Payment for Full Application
FAQ
Common project questions
What is a custom data conversion application?
It is a private application built for your exact files and output format. You use it inside your own company to convert, validate, and archive data without sending production files to an outside vendor.
How does the free trial software work?
You send sample files and requirements. I build a trial application for your format, free of charge, with one limit: it processes up to 5 files at a time.
Will our data leave our company after the software is delivered?
No. The full application can run on your own computer, local network, or server, so your production files and archived data stay inside your environment.
Is this a one-time payment?
Yes. The full custom application is delivered for a one-time payment, so you do not keep paying per file, per batch, or every month for the same conversion work.
How much data can the full application process?
The paid version can be designed for high-volume batch processing without the 5-file trial limit. Practical speed depends on file complexity and the computer or server used.
Can you work with scanned PDFs?
Yes. I can extract and transform data from scanned PDFs using OCR and advanced data extraction techniques.
What file types do you support?
I work with a wide range of file formats including PDF, TXT, XLSX, XLS, CSV, XML, JSON, DOCX, HTML, databases, and many other structured or unstructured file types.
What is your data conversion process?
For custom software, you provide sample files and your required output. I analyze the structure, build the trial application, validate the output with you, and then deliver the full application for in-house use.
How can I be sure you can transform my data correctly?
The free trial application lets you test the conversion on up to 5 files at a time before you approve the full version.
What if there are errors in the delivered data?
If any issues are found that are within the agreed project scope, I will correct them promptly. Client satisfaction is a priority, and reasonable revisions are included.
How long do you keep my data?
Sample files are used only to build and verify the application. Once the project is complete and you confirm the result, project files are deleted unless you request otherwise.
Can you process multilingual documents?
Yes. I have experience processing documents in English, German, French, and other languages depending on the project requirements.
Can you prepare database-ready files?
Yes. I can deliver clean, validated, structured data ready for import into SQL databases, ERP systems, CRM platforms, and other business applications.
Can you handle billions of records?
Yes. I have experience with enterprise-scale data work and can design applications for very large archives, including millions or billions of records, when the source files and infrastructure support it.
Request Free Trial
Send sample files for a free custom application trial
Upload up to 5 sample files and describe the output you need. I will review the structure and build a trial application that processes up to 5 files at a time, so you can verify the result before paying for the full version.
contact@legacydataconversion.com