Hi everyone,
I'm using PDFBox to receive faxes. Our fax service provider receives
them and emails them to us as PDF attachments. I'm reading the emails,
extracting the PDF attachments and then using PDFBox to extract the TIFF
images from the PDF's.
This works great (after I found out I had to install the JAI ImageIO
Tools), but there is one problem: for some faxes the TIFF's are only
half-height. The whole page is there, but is is squashed in the vertical
direction. I imagine that these are faxes which were sent at some kind
of "coarse" setting.
The thing is, if I open these PDF's in Adobe Reader they are displayed
with the correct aspect ratio. So somewhere in the PDF there must be
information telling Adobe Reader to scale the image up in the vertical
direction, but I don't know how to get at this information.
Can someone here help me with this problem? Do you know how this
information is stored in the PDF, and how I could get at it with PDFBox?
Is it stored in the TIFF itself somehow? I could email interested
parties one of the PDF's if it would help.
Kind regards,
Pepijn Schmitz
