Learn the Ins and Outs of PDFs
We are here to help you become a PDF expert. We want to provide you with the tools and skills you need to tackle PDF-related tasks with confidence and ease.
Tech corner
The versatility of a PDF viewer
Almost every user knows: a PDF viewer is not just a display tool for a well known document format. It provides many more functions, runs on many platforms, offers interfaces in many technologies and serves as an importan ...
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The caveats of assembling PDF/A documents
Assembling PDF documents from various sources is a crucial part of an output management system. And, as the document needs to be archived in most cases, it should conform to the PDF/A standard. But, is there a way to ass ...
Tech corner
Digging for information by extracting data from a PDF document
Extracting text from a PDF document is one of the most popular information retrieval function. But how about other information such as images, metadata and more? It can be simple - but also tricky.
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How to convert signed documents to PDF/A?
I often get the question whether it is possible to convert digitally signed documents to PDF/A. Because there's no short answer to this I thought it would be helpful to explore the topic a bit into more detail. What tec ...
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Transform Your Email Management with Our Advanced PDF Conversion Service
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Image detection in scanned images
Detecting pictures in scanned document pages has many advantages such as better compression rates and the possibility to extract them individually.
Product updates
PDF Web Viewer now optimized for mobile devices and available at npmjs.com
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Font subsetting - how it works and when to use
In order to reduce the file size PDF producers use a technique called font subsetting. What does exactly happen with the fonts and what are the consequences?
Product updates
Understanding the Nuance of PDF/A Archiving Formats: Spotlight on PDF/A-1 vs. PDF/A-2 in the PDF Tools Conversion Service
Tech corner
Digital signatures in PDF/A
Digital signatures are still not very widely used and the the knowledge about them is often fuzzy. This article tries to give an overview about this huge and complex topic.
Product updates
With Web Client testing conversion service is now even easier
We have made it even easier for you to test and evaluate the 4-Heights® Conversion Service – with a Web Client. Now you can try out the GUI client of Conversion Service conveniently in your browser and without installati ...
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Automating the conversion of Microsoft Office Documents to PDF/A
A central service to convert Microsoft Office documents to PDF or PDF/A has obvious advantages. The conversion is done on an enterprise wide platform with well defined software versions and conversion process configurati ...