PDFmarks is a technique that accompanies PDF and that is used to
store metadata such as author or title, but also structural information
such as bookmarks or hyperlinks.
When Ghostscript reads the main PDF generated by the TEX system
with embedded PDF files and outputs the final PDF, the PDF page
mode and name targets etc. are not preserved. Therefore, when you
open the final PDF, it is not displayed correctly. Also, remote PDF
links do not work correctly.
This program is able to extract the page mode and named targets as
PDFmark from PDF. In this way, you can obtain embedded PDF files
that have kept this information.
WWW: https://github.com/trueroad/extractpdfmark/
This is the FreeBSD Ports Collection. For an easy to use
WEB-based interface to it, please see:
https://ports.FreeBSD.org
For general information on the Ports Collection, please see the
FreeBSD Handbook ports section which is available from:
https://docs.freebsd.org/en/books/handbook/ports/
for the latest official version
or:
The ports(7) manual page (man ports).
These will explain how to use ports and packages.
If you would like to search for a port, you can do so easily by
saying (in /usr/ports):
make search name="<name>"
or:
make search key="<keyword>"
which will generate a list of all ports matching <name> or <keyword>.
make search also supports wildcards, such as:
make search name="gtk*"
For information about contributing to FreeBSD ports, please see the Porter's
Handbook, available at:
https://docs.freebsd.org/en/books/porters-handbook/
NOTE: This tree will GROW significantly in size during normal usage!
The distribution tar files can and do accumulate in /usr/ports/distfiles,
and the individual ports will also use up lots of space in their work
subdirectories unless you remember to "make clean" after you're done
building a given port. /usr/ports/distfiles can also be periodically
cleaned without ill-effect.