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
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.
Tech corner
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?
Tech corner
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.
Tech corner
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 ...
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.
Tech corner
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
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 ...
Tech corner
How to deal with poor PDF quality
"Quality is remembered long after the price is forgotten", says a Gucci family slogan. Nevertheless, creators of PDF documents, private users up to large companies, regularly produce files with insufficient quality causi ...
Tech corner
Importing images into a PDF file - a seemingly trivial task
A picture is worth a thousand words. That's why they are fondly embedded in PDF files. One would expect that embedding images in a PDF file is a simple task. Because it seems so easy, there are also many, including free, ...
Tech corner
Does OCR make sense for digitally generated PDFs?
Scanned PDF files usually consist of one raster image for each page. The OCR engine can recognize the text in this image and make the document searchable. But what about digitally generated documents?
Tech corner
The Advantages of PDF/A-3 in Practice
PDF is a widely used digital document format for secure and easy access to documents. The latest version of the format, PDF/A-3, offers the added benefit of being able to store and archive files of any format, including ...
Tech corner
Electronic Signatures – A Crash Course
What is a reliable way to digitally sign documents? In this article, we'll explain the differences between electronic signatures and digital signatures, explore the types of signatures used in practice, and discuss the b ...