Graphics Programs Reference
In-Depth Information
Figure 2-3. Hello, World! PDF, viewed in the free Adobe Reader on Microsoft Windows
Remarks
We've seen how to build a simple PDF file from scratch, using
pdftk
to help us, and
we've looked at some of the basic syntax that makes up a PDF document.
You can look at existing PDF files using your text editor too. However, some of the
data (such as the graphics operators making up the page content) is likely to be com-
pressed and thus unreadable. The
pdftk
command can be used to decompress these
sections for easier reading—see
“Compression” on page 114
.
In future chapters, we'll look at the parts of a typical PDF file in some detail and how
programs read, write, and edit PDF files. At each stage, there will be the opportunity
to build example files by altering and extending the example we built in this chapter.
