PDF Tools for Developers
Build PDF generation into your applications with our developer-friendly API. Convert HTML to pixel-perfect PDFs, create templates with dynamic data, and automate document workflows.
All tools are free, require no registration, and process files directly in your browser for maximum privacy.
Developers — Common PDF Challenges
How SublimePDF Helps
HTML to PDF API
Convert any HTML/CSS to pixel-perfect PDFs using real browser rendering.
Templates
Create reusable templates with Handlebars syntax and dynamic data binding.
Batch Processing
Generate hundreds of PDFs per minute with our scalable API infrastructure.
Merge API
Programmatically merge multiple PDFs via API calls.
Recommended Workflow
Get an API key
Sign up for free and generate your API key from the dashboard.
Build your template
Create HTML/CSS templates for your documents (invoices, reports, etc.).
Integrate the API
Make API calls from your application — Node.js, Python, Ruby, PHP, or any language.
Scale and automate
Use webhooks for async processing and batch operations for high volume.
Helpful Guides
How to Merge PDF Files Online
Merging PDF files is one of the most common PDF tasks — whether you're combining reports, contracts, or scanned pages into a single document. SublimePDF lets you merge PDFs instantly in your browser with no file uploads to any server.
How to Combine Images To PDF
Scanning receipts, whiteboards, or ID documents often leaves you with a folder full of loose image files that are hard to share or archive. Combining images into a single PDF keeps everything organized in one portable document. SublimePDF merges JPG, PNG, and other image formats into a polished PDF in seconds—no software installation needed.
How to Merge PDF On Mac
macOS includes built-in PDF merging through Preview, making it one of the few operating systems where you can combine PDFs without extra software. However, Preview's approach has limitations—it modifies the original file, offers no compression, and doesn't support batch operations. For quick two-file merges, Preview is convenient. For anything more complex, SublimePDF's online tool provides reordering, selective page merging, and file size optimization.
Privacy & Compliance
SublimePDF processes all files locally in your browser using WebAssembly technology. No documents are uploaded to any server, which helps organizations comply with data protection regulations like GDPR and HIPAA. Electronic signatures created with SublimePDF are legally binding under the ESIGN Act (US) and eIDAS (EU).