BFO PDF Library 2.21: some new features
Some details on our latest PDF Library release
Converting PDFs to bitmap PDFs
There are many situations where a PDF has to be "rasterized" - the contents of each page turned into a bitmap image - such as when a PDF is being converted to PDF/A and the page contents cannot be repaired. This article shows how to do it efficiently.
Trimming whitespace from a TIFF before saving
Sometimes when you convert a PDF to TIFF, you're left with a lot of whitespace around the content of the page. This article shows an easy way to remove it.
Creating TIFF Class F Images
The BFO PDF Library can create TIFF images from PDF using a number of compression algorithms, including Group 4. If for some reason you want to use Group 3 compression you'll need to use a third party library like JAI. This article shows you how.
Converting PDF to TIFF, PNG and JPEG
We're asked some questions more than others at BFO, and one of the most common concerns conversion of a PDF to a bitmap image format - typically TIFF, but sometimes JPEG or another format. This process is called "rasterization" and while it's very easy to do with the "extended plus viewer" version of our PDF Library, it's worth going over in more detail.