Automated PDF Workflows

Automate document generation and processing at scale with our developer API. Convert HTML/CSS templates to pixel-perfect PDFs using real Chromium rendering, batch-process hundreds of documents per minute, programmatically merge and compress files, and integrate with any CRM, ERP, or workflow platform.

All tools are free, require no registration, and process files directly in your browser for maximum privacy.

Automated PDF Workflows — Common PDF Challenges

⚠️Generating hundreds of personalized documents — invoices, certificates, reports — manually does not scale
⚠️Existing PDF libraries have inconsistent CSS rendering, producing documents that don't match designs
⚠️Integrating PDF generation into CI/CD pipelines, CRMs, and business applications requires reliable, well-documented APIs
⚠️Batch processing large volumes of documents needs queuing, error handling, and status tracking

How SublimePDF Helps

HTML to PDF API

Convert HTML/CSS templates to pixel-perfect PDFs programmatically with full Chromium rendering support.

Merge PDF

Programmatically combine generated documents with cover pages, attachments, and supporting files.

Compress PDF

Automatically optimize generated PDF file sizes before storage or email distribution.

Recommended Workflow

1

Design templates

Build HTML/CSS templates for your documents — invoices, certificates, reports, or any recurring format.

2

Integrate the API

Connect the PDF generation API to your application, CRM, or workflow automation platform via REST endpoints.

3

Generate at scale

Trigger document generation on events — new order, completed course, monthly report cycle.

4

Process and distribute

Automatically merge with attachments, compress for delivery, and route to recipients via webhooks.

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 Compress PDF for Email

Email services typically limit attachments to 25MB. If your PDF is too large, SublimePDF can compress it dramatically while maintaining readable quality — perfect for sending via Gmail, Outlook, or any email service.

How to Reduce PDF File Size

Large PDF files are difficult to share, upload, and store. SublimePDF's compression tool can dramatically reduce file size while keeping text sharp and images clear.

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).

Automated PDF Workflows — FAQ

What rendering engine does the API use?
Our API uses real Chromium rendering, supporting full CSS3 including Flexbox, Grid, custom fonts, and media queries for pixel-perfect output.
Can I trigger PDF generation from my existing systems?
Yes. The REST API integrates with any system that can make HTTP requests — CRMs, ERPs, workflow automation tools, or custom applications.
How does batch processing work?
Submit multiple generation requests via the batch endpoint. Each job is queued and processed, and you receive results via webhook callbacks or polling.

Get started for free

All PDF tools are free, private, and require no registration.

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