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More than ever, the Adobe "Portable Document Format" or PDF is a critical format for communication.  One feature of the format is that it bridges the world of the web with the world of print very well.
{{Feature
|image=Adobe PDF.svg
|imgdesc=PDF
|title=
}}
[[File:Used car checklist.pdf|thumb|right|200px|2-page pdf version]]
 
{{#set:feature description = Through PDF Handler, we can display thumbnails of PDF files uploaded into the wiki }}
{{#set:feature notes = relies on <code>gs convert and pdfinfo</code> }}
{{#set:feature tests =  }}
{{#set:feature examples = The example on the right is used here and on the page [[Cloning]]. }}
 
More than ever, the Adobe "[[w:Portable Document Format|Portable Document Format]]" or PDF is a critical format for communication.  One feature of the format is that it bridges the world of the web with the world of print very well.
 
== Saving PDF Forms ==
Annoyingly, Adobe Software does not allow you to save the contents of PDF forms using Adobe Acrobat Reader.  The software tells you to print the form if you wish to have a copy.  The solution is to avoid Adobe Reader (I left out the 'acrobat' since it's not even flexible -- hardly an acrobat).  Okular or Evince will allow you to save the contents of that application/healthcare/insurance/DMV form that you filled out so that you have an electronic record rather than a paper record.


== PDF Tools ==
== PDF Tools ==
Surprisingly, I could not easily create a new PDF that was a combination of two other pdf documents.  That's when I found the "PDF Toolkit" http://www.pdfhacks.com/pdftk/
Surprisingly, I could not easily create a new PDF that was a combination of two other pdf documents.  That's when I found the "PDF Toolkit" http://www.pdfhacks.com/pdftk/


OpenOffice does output pdf, and so does KPrinter, but the PDF Toolkit offers many more features that really should be present in a GUI program like Kpdf -- which is a viewer rather than an authoring application.  At least you can install the "Service Menus" into Konqueror to get some easy right-click integration.  It would be interesting to use DCOP to create a simple merge GUI.
OpenOffice does output pdf, and so does KPrinter, but the PDF Toolkit offers many more features that really should be present in a GUI program like Okular (formerly Kpdf) -- which is a viewer rather than an authoring application.  At least you can install the "Service Menus" into Konqueror to get some easy right-click integration.  It would be interesting to use DCOP to create a simple merge GUI.
 
PHP developers should look at the libraries and [https://www.php.net/manual/en/book.pdf.php functions] provided there for manipulating PDF forms.


PHP developers should look at the libraries provided there for manipulating PDF forms.
== See Also ==
# [[Format conversion]]
# see the [[Collections]] page for creating books which can be printed as PDF
# The [[Cloning]] article shows an example of how the '''PDF Handler''' extension allows the wiki to generate thumbnails for pdf files as if they were regular images.


[[Category:PHP]]
[[Category:PHP]]