About Us
About Sungerine™ Technology
We are a technology company focused on innovation in document processing, dedicated to providing simple, efficient, and secure online PDF solutions for users worldwide.
Through continuous technological innovation and user experience optimization, we make complex document workflows accessible to everyone.
Why Choose Us?
Privacy First
We primarily process and store data in data centers located in the European Union/European Economic Area (EEA). When cross‑border transfers are required, we comply with applicable laws and implement equivalent safeguards. Files are automatically deleted after processing or cleared within the minimum necessary retention period to protect your data.
Lightning Fast
Powered by a distributed cloud architecture and advanced file‑processing engine, delivering millisecond‑level responsiveness and high throughput.
Simple to Use
No installation required. Open your browser and start working. An intuitive interface makes it easy for everyone.
Globally Reliable
We strive to provide 24×7 stable service with a 99.9% target availability (not an SLA guarantee), accessible wherever you are.
Our Mission
Make document processing simple and delightful
We believe technology should bring convenience, not complexity. That’s why we turn complex PDF processing into simple, easy‑to‑use online tools so everyone can access professional‑grade capabilities.
Core Values
- Users First — Centered on user needs with continuous improvements
- Technology Driven — Solve real‑world problems through innovation
- Secure & Trustworthy — Put data security and privacy first
- Open & Sharing — Embrace open source and contribute to the community
Product Matrix
Dpdf.com — Professional PDF Tool Suite
Our flagship product offers a complete PDF toolkit:
- PDF Compression — Smart algorithms that greatly reduce file size while preserving quality
- Format Conversion — Two‑way conversion between PDF and Word, Excel, PowerPoint, and more
- Page Editing — Merge, split, rotate, delete pages, and other rich editing features
- Security & Protection — Add passwords and digital signatures to PDF files
Technical Advantages
- AI‑Driven Engine — Intelligently recognizes document structure for better results
- Transport & At‑Rest Encryption — TLS in transit; encrypted at rest
- Automatic Cleanup — Files are deleted after processing or cleared within the minimum required period
- Elastic Scaling — Auto‑scales with load to ensure stability
Service Commitment
Security Assurance
Adopts industry‑recognized security standards with layered encryption and access controls to protect your files.
Privacy Protection
Strictly implements a “delete‑after‑use” approach — never saves or shares your files.
Professional Support
An experienced engineering team provides 24×7 technical support.
Free to Use
Core features are free so everyone can benefit from professional PDF tools.
Contact Us
We value every user’s voice. For questions, suggestions, or partnerships:
Email: [email protected]
Business Hours: Monday–Friday 9:00–18:00 (UTC+8)
Response Commitment: General inquiries within 3 business days; urgent issues prioritized with an initial response within 24 hours
Sungerine™ Technology — Making document processing simpler