We currently make use of Aspose.PDF to convert multi-page tiff files to pdf. For some reason these generated pdf’s are very large, for example a tiff with a size of 1770 KB results in a pdf with a size of 54580 KB. The code was implemented based on the examples on your website, and we have also tried all suggestions found here: https://docs.aspose.com/pdf/net/optimize-pdf/#shrinking-or-compressing-all-images without any improvements.
The only solution was to set the IsBlackWhite to true (found here Convert TIF to PDF Massive File Size Increase), which dramatically reduced the size of the PDF’s.
We however have new requirement to also cater for color PDF’s, so this is no longer a viable solution. Do you have any further suggestions? Are you planning on resolving the problem in a future release?