[cl-pdf-devel] patch, pdf templates

[Tim Daly Jr.]

Hi everybody,

I'd like to contribute a small patch, and some code for creating
"templates" from pdf pages.

The patch mostly changes pdf-parser.lisp.  It adds location
information to a couple of error messages, a couple of comments, names
a constant, and fixes a couple of small parsing bugs.  There is one
change in pdf.lisp -- when printing numbers, we have to make sure that
they are printed in a form that's legal PDF syntax.

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The template code allows you to create a "Form XObject" from a PDF
page which can then be drawn onto new PDF pages.  The file stands
alone, but it might be nicer to integrate it into the cl-pdf system
and package definitions.

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The source itself can be converted into a PDF using pbook.el, which
might be a nicer way to read it:

  http://tenkan.org/~tim/pdf-template.pdf

This is an example output file, created with
(pdf:test-template "/tmp/pdf-template.pdf" 0 "/tmp/example.pdf"):

  http://tenkan.org/~tim/example.pdf

Thanks for cl-pdf.  It's beautiful code, and a lot of fun to work
with! :)

-- 
-Tim