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PDF API Hub
Add text, watermarks, and fill forms in pdfs with ease | API
# API Design
Featured on : Aug 25. 2025
Featured on : Aug 25. 2025
What is PDF API Hub?
Easily add text, fill fields, and apply watermarks to PDFs using our simple API. PDF API Hub is developer-friendly and integration-ready.
Problem
Users currently manually add text, watermarks, and fill forms in PDFs using traditional software, which leads to time-consuming processes, lack of automation, and integration challenges.
Solution
A developer-focused API tool that enables users to programmatically add text, fill forms, and apply watermarks to PDFs. Examples: automate document processing in SaaS apps or batch-generate invoices with custom branding.
Customers
Software Developers, SaaS companies, and IT departments who require scalable PDF processing in their workflows.
Unique Features
Simplifies complex PDF manipulation tasks via a single API, offering pre-built templates, watermark layering, and form field detection without requiring deep PDF specification expertise.
User Comments
Saves hours of manual PDF editing
Seamless integration with existing systems
Reliable output formatting
Cost-effective alternative to Adobe Acrobat
Quick API documentation implementation
Traction
Launched on ProductHunt in 2024 with 380+ upvotes, used by 1,200+ developers, offers tiered pricing from $99/month for 1,000 documents.
Market Size
The global PDF software market is projected to reach $2.5 billion by 2027 (Grand View Research), driven by digital document adoption across industries.