Improved Document Debugging Tools

At DocRaptor, we’ve always strived to help you make perfect PDF and Excel documents. Over the years, we’ve built up several internal tools to help debug document issues. We’ve now integrated that functionality directly into the document log, so you’ll have better visibility into conversion problems. Specifically, the improved document log lets you:

  • Download your document input and output, as well as the HTML rendered by JavaScript processing
  • See any asset loading errors
  • See where in the generation pipeline a document failed
  • See the API parameters submitted with your request

We also released a new API parameter that logs JavaScript console messages, instead of causing a document failure... Continue Reading

DocRaptor PDF Engine Updated to Prince 11.2

Today we are releasing the latest update to DocRaptor’s PDF engine; Pipeline 6 is now on Prince 11.2.  This upgrade is the new default and anyone using Pipeline 6 will begin using the new version automatically.  New improvements with this release include but are definitely not limited to:

  • Much improved Opacity support for CSS
  • New @prince-overlay @page region for use with watermarks and other overlays
  • Support for SVG masks
  • Substantial improvements to the Prince JavaScript engine
  • Various CSS and SVG bug fixes and performance enhancements

You can read the full Prince 11.2 release notes here.  .. Continue Reading

Upgraded HTML to PDF Rendering Engine: Prince 11

We’ve just released support for Prince 11, latest version of the engine we use for rendering HTML to PDF. To upgrade, you’ll need to use DocRaptor Pipeline #6.

You can change your default pipeline in your account settings page, or via the pipeline parameter in your API calls. Using the account setting is more convenient, while the parameter lets you test your documents before upgrading your entire account... Continue Reading

Pipeline 5 Alive!

As part of DocRaptor’s ongoing quest to make HTML to PDF and HTML to XLS(X) as easy as possible, we recently released the new DocRaptor Pipeline promising it would smooth upcoming feature releases. Here’s one of those promised feature releases!

What’s New?

Pipeline 5, the latest version of the DocRaptor Pipeline, is a big upgrade to our javascript processing... Continue Reading

Introducing the new DocRaptor Pipeline

When we started DocRaptor over 6 years ago, we made the simplest thing that could possibly work. It solved our need for easily producing consistently beautiful documents and it gave us the chance to see if other people also had this problem. It turns out lots of people did :)

Over the years, DocRaptor has become more complex internally... Continue Reading

Privacy at DocRaptor: Why and How We Joined the New US-EU Privacy Shield Program

Given the recent tumult concerning US-EU privacy agreements, we thought it would be useful to review DocRaptor’s privacy standards and our experience joining the new Privacy Shield program (if you just want to learn about joining Privacy Shield, scroll towards the bottom).

DocRaptor Privacy

As you can imagine, DocRaptor’s HTML to PDF conversion service sees a lot of private documents, from financial reports to legal paperwork... Continue Reading

Making PDFs with Bootstrap 3 and DocRaptor


Bootstrap is the most popular front-end framework for developing websites. We see a lot of customers using Bootstrap to format invoices and reports while converting them from HTML to PDF with DocRaptor. However, there are several common issues you may run into when using Bootstrap 3 with DocRaptor:

Bootstrap is very opinionated in media print mode

In print mode, Bootstrap makes following adjustments:

  • All columns become full-width
  • All colors are removed
  • All background shading is removed

These changes, while reasonable for physically printing a web page, may surprise you if you’re trying to make a PDF invoice or report... Continue Reading

Using DocRaptor Without Programming

DocRaptor is now available as a task within Kotive workflows! Kotive enables anyone – including non-technical people – to automate and control the flow of tasks within their business. Setting up your document does require some HTML knowledge, and you’ll be limited to making PDFs based on other Kotive integrations, but you no longer need to be a programmer to create basic PDFs with DocRaptor... Continue Reading

Official DocRaptor Clients

We are very excited to announce officially supported clients for 5 programming languages!


These clients support 100% of our HTML to PDF and HTML to XLS API. They will be updated whenever we add new options. So you can follow the projects on GitHub to see when we make improvements.

You can start using these clients today... Continue Reading

Managing Errors in your HTML to PDF Pipeline

When you view an ordinary web page, many errors may occur without your knowledge. The page itself may fail to load, or resources (such as images and stylesheets) may fail to download, be sent using bad encoding, have unknown MIME types, or any number of other common errors.

As long as the page loads, your browser attempts to display the page and it ignores any errored images or stylesheets... Continue Reading