Custom PDF & Document Solutions: SDK, API, CLI & Virtual Printers

We've been building PDF and document software for over 25 years.
From simple tools to complex enterprise systems — we help companies build what they actually need.

⭐ 25+ Years Experience ✔ Real Production Systems ⚡ Custom Development (SDK, CLI, API) 🔒 PDF Security / DRM 📄 PDF • OCR • Printing • APIs

VeryDOC has been delivering production-proven software and enterprise document technologies since 2000. With 25+ years of software development experience, we specialize in high-performance SDK, API, CLI, Virtual PDF Printer, API Hooking, and custom system-level solutions for global clients.

Our team specializes in document conversion, document automation, OCR, PDF processing, printing technologies, barcode systems, document security, and enterprise workflow integration. Most of our experience comes from real customer projects, where reliability, performance, and long-term maintenance are important.

In addition to our standard software products, we also provide custom software development services. Whether you need a command line tool, Windows application, Linux service, REST API, SDK, or a complete enterprise document management solution, we can build software based on your exact requirements.

VeryDOC Custom Development Services

Category	VeryDOC Technical Capabilities	Typical Applications
PDF Processing & Custom PDF Solutions	Create / edit / merge / split PDF files, Add / delete pages, bookmarks, metadata, Modify text, images, stamps, watermarks, Fill / sign PDF forms (AcroForm, XFA), Encrypt / decrypt PDF files, OCR-based PDF generation and searchable PDF, Rule-based PDF processing (invoice number, customer name, barcode), Batch PDF automation workflows, Compare PDFs (diff, version tracking), Redact sensitive data permanently (GDPR / compliance), PDF optimization (compression, linearization, fast web loading), PDF printer driver creation and customization	Document automation systems Invoice processing Legal document workflows E-learning platforms Enterprise PDF pipelines
Document Conversion Engine	PDF ↔ Office (Word, Excel, PowerPoint) HTML ↔ PDF Image ↔ PDF (JPG, PNG, TIFF, BMP) CAD formats (DWG, DXF) processing EPUB, CHM, XPS conversion PostScript / EPS processing Batch conversion systems High-speed server-side conversion engines	SaaS conversion platforms Enterprise document pipelines Cloud conversion APIs
OCR & Intelligent Document Processing	OCR (printed + handwritten) Table recognition and extraction Invoice / receipt processing Form recognition and field extraction Layout analysis and structure detection Document classification AI-based document understanding	Invoice automation Finance systems Medical record digitization Archive digitization
Printing & Capture Systems	Windows virtual printer driver (PDF / image / EMF / PCL / PS) Print job capture from any Windows application Spool file interception Print monitoring and auditing System-wide print tracking Printer pipeline automation	Enterprise print archiving Compliance tracking Secure print systems
System & Application Hooking	Windows API hooking File system monitoring Network API interception Application behavior tracking Process-level control and extension	Security monitoring systems Enterprise control tools Data protection systems
Document Security & DRM	PDF encryption and permission control Digital signatures and certificate validation DRM protection for PDF / image / video / audio Dynamic watermarking (user, time, IP) Access expiration and license control Secure document viewing systems	Online courses protection Paid document platforms Confidential document sharing
Image & Scanner Processing	Image compression and optimization Deskew / despeckle / cleanup Image format conversion TWAIN / WIA scanner integration Batch scanning systems	Scanning workflows Document cleanup systems Digital archive systems
Barcode & Data Encoding	Barcode generation (1D / 2D) QR code generation Barcode recognition from documents Batch barcode processing integration	Logistics systems Warehouse management Label printing systems
Sensitive Data Redaction	Permanent removal of sensitive text, images, annotations, and metadata from PDF files with compliance-grade security (GDPR / HIPAA / legal requirements)	Legal documents, financial reports, medical records, confidential document handling
Font & Rendering Engine	TrueType font processing, font embedding, glyph rendering, PDF rendering engine development	PDF viewers, document rendering systems, cross-platform document display
PDF Forms & Interactive Documents	AcroForm creation, form filling, flattening, validation, data extraction, dynamic form generation	Insurance forms, government applications, online submission systems, enterprise workflows
Document Search & Indexing Engine	Full-text indexing, OCR-based search, metadata extraction, fast retrieval systems	Enterprise search platforms, knowledge bases, compliance document retrieval systems
Cloud & API Platforms	REST API development Cloud document processing services Online file conversion systems Document viewer APIs Multi-tenant SaaS backend systems	Cloud platforms SaaS products Online document services
Enterprise Integration & Automation	ERP / SAP / CRM integration SharePoint integration Database-driven workflows Rule-based automation systems Batch job scheduling engines	Enterprise automation Business process systems Internal workflow engines
Cross Platform Development	Windows / Linux / macOS development iOS / Android applications Web-based document systems CLI tools / SDK / DLL / API design	Enterprise software Cross-platform tools Developer SDK systems
Custom Development (Any Requirement)	If your requirement is not listed above, we can design and build a fully custom solution based on your workflow and business logic.	Any document-related system Special enterprise requirements Legacy system modernization

FREE Technical Consultation

VeryDOC provides FREE technical consultation for all custom development projects. If you are planning a new system or improving an existing one, our engineers can discuss your requirements, recommend suitable technologies, and suggest the best implementation approach before development begins.

We can help answer questions such as:

Can my project be implemented?
Should I use a CLI tool, API, SDK or desktop application?
How can the software integrate with my existing system?
What is the expected development time?
What technologies are most suitable for my project?

All project information is treated as strictly confidential. We never disclose customer information or project details.

Request a Project Estimate

If you would like to receive a cost estimate for your project, please send us a brief description including:

Name
Company
Country
Email Address
Phone Number (optional)
Project Start Date
Expected Delivery Date
Project Description
Existing Software or System (if applicable)
Preferred Delivery Method (CLI, API, SDK, Desktop, Cloud)

You can contact us by email at:
support@verydoc.com

Or submit your request through our online support system:
VeryDOC Support Center

After reviewing your requirements, one of our senior engineers will contact you to discuss technical details, recommend an implementation plan, and provide a development estimate.