Hi,
Thanks for sending me a sample, it allowed me to fix the issue you had with version 1.4.11.
The text in Videographer_RFP.pdf now appears correctly ; the problem was due to an incorrect implementation of the ASCII85 decoding algorithm.
To answer your question, the principle of ASCII85 encoding is a little bit like base64 : it allows you to encode data so that it can go through a communication line that handles only 7-bit values.
I really thank you to have reported this issue ; so far, I was unable to test the ASCII85 decoding I had integrated in the PdfToText class, because I had no PDF file to exercize upon...
If you want more information about this encoding scheme, you can find it here :
en.wikipedia.org/wiki/Ascii85
There is also a site which gives additional information (and notably, about the ASCII85 encoding used by Adobe) but it is in french ; here is a link on "how to decode ascii85" :
dcode.fr/code-ascii-85#q2
Please feel free to contact me if you have any further issue or question.
With kind regards,
Christian.