If you've been waiting to see some more 'PDFax' example files, I've
attached a few that might be of interest.
The file 'PDFaxJPEG.pdf' is the simplest example. It is just a
grayscale JPEG of the Adobe logo (it's small). Open the file with
'Wordpad' to see comments that I've added.
The next file 'PDFaxJPEGEncrypted.pdf' is the same as the last file but
it has been encrypted -- all objects are in the same order and same
numbering as 'PDFaxJPEG' with the addition of the second object (#13)
that is the encryption key object. The user password is '12345', the
owner password is '54321'.
The third file 'PDFaxJPEGdsigSecure.pdf' is the same as
'PDFaxJPEGEncrypted.pdf' but has been encrypted using 'Self-Sign
Security' it can only be opened by myself and John Pulera -- the
password is encrypted using PPK encryption and saved in object 13. This
is useful for sending a document only to specific individuals without
having to agree to a password in advance (but you must have their DSIG).
The last file 'PDFaxFlateandJPEGWithMask.pdf' demonstrates masking in
PDF. This document consists of three images: a color gradient, a gray
scale gradient, and a bi-level text image. I use the text to mask off a
portion of the color gradient to be displayed over the gray scale
background. Again, there are comments in the file.
Let me know if you have any questions. I will be trying to make two
more samples: one that shows a transparent mask (anti-aliased edges)
and another that shows how the PDF would look if it was digitally
Also, you will notice that Acrobat wants to re-write the files once you
try to close them, that's because it doesn't like the new 'PDFax' key
that was added to the files -- just close the file without rewriting.
This archive was generated by hypermail 2b29 : Fri Sep 13 2002 - 12:21:01 EDT