Empowering Document Privacy.
100% Free & Open Source.
BloomPDF is Stemlen's flagship open-source document platform engineered to deliver enterprise-grade PDF operations with 100% data privacy and zero server uploads.
29+
Browser PDF Tools
100%
Free & Open Source
0 Server
File Uploads Required
By Stemlen
stemlen.com
Architecting modern software for the digital frontier.
Incorporated as STEMLEN PRIVATE LIMITED (CIN: U62011TS2026PTC210559), Stemlen is a forward-thinking technology enterprise headquartered in Telangana, India. Our core engineering focus centers on building high-impact software systems, scalable enterprise resource planning (ERP) platforms, and browser-first utility platforms.
We believe that software should be fast, elegant, and uncompromisingly respectful of user privacy. With products ranging from educational management infrastructure (School Stacker) to open-source AI project management platforms (Fairlx) and professional document workspaces (BloomPDF), Stemlen continues to push the boundaries of modern web technologies.
STEMLEN PRIVATE LIMITED
Reg. No: 210559 · Telangana, India
Why BloomPDF is Built Different.
Traditional online PDF tools upload your sensitive legal contracts, tax documents, and personal IDs to third-party cloud servers. BloomPDF changes everything.
WebAssembly Engine
All PDF merging, splitting, OCR, compression, and rendering are performed locally inside your web browser using compiled WebAssembly modules for desktop-class speed.
Zero Server Uploads
Your PDF bytes never leave your machine memory. No data is stored, cached, or transferred across any external server infrastructure.
Zero Friction & Watermarks
Enjoy unlimited document operations without mandatory sign-ups, hidden paywalls, subscription tiers, or intrusive branding watermarks.
The Stemlen Product Ecosystem
Explore our portfolio of digital platforms designed for productivity and enterprise management.
BloomPDF
The client-side PDF utility suite with 29+ tools for merging, editing, converting, compressing, and protecting documents.
Fairlx
AI-powered project management platform for modern engineering teams and collaborative task orchestration.
School Stacker
Enterprise school ERP management software empowering educational institutions with admissions, exams, fees, and portals.
Have questions or enterprise inquiries?
Get in touch with the engineering team at Stemlen Private Limited for custom integrations, partnerships, or corporate support.