Hi all,
I am going to revive this mailing list. The last big update was announced
through the vwnc mailing list which I copy below.
I promise to announce all new versions again on this list :).
Happy hacking,
Christian
8<-------------
Dear all,
Version 1.4 of the PDF library PDF4Smalltalk has been released to the public
store (with MIT licence).
The library now supports Smalltalk images (pictures) to be inserted into PDFs.
There is some documentation:
http://christianhaider.de/dokuwiki/doku.php?id=pdf:images ;.
Any Smalltalk image can be added to a PDF (with masks and alpha transparency).
The attachment is a demo page as a teaser.
The implementation is supposed to be complete in the sense that ALL Smalltalk
images should be convertible to PDF. With a drawback: due to missing image
compression algorithms (JPEG, JBIG2 and others), not the most space saving
representation is used (only Zip compression).
Also, not all images found in PDFs can be converted to Smalltalk images. This
is again due to missing image compression filters and, for PDF images with
other color spaces than /DeviceRGB and /DeviceGray, due to missing color
conversion methods.
The feature is well tested and reasonable efficient. But, of course, there will
be bugs I don’t know about. Please, if you see something fishy, tell me and
I’ll fix it.
The library works in all VisualWorks versions from 7.10 up (Jenkins tested).
Is there anyone who uses the library with previous versions of VisualWorks?
Happy hacking,
Christian
P.S. This overdue feature was realized thanks to the encouragement of Bob
Nemec, author of Report4PDF, and funding from his employer, the Canadian
engineering company HTS.
P.P.S. I am going to move my business more towards PDF and I will try to
develop tools and services around PDF. If anybody knows projects interested in
PDF related work, I would be glad to hear about it :) .
Attachment:
demo21_images.pdf
Description: Adobe PDF document
