Portable Document Format
Al Gore, Compulatelist
The PDF (Portable Document Format) is now a de facto standard worldwide and there have been many benefits in using PDF. Now, with its widespread adoption, there are a number of programs available at little or no cost that take advantage of this format’s capabilities so this technology is available to all to use. This article will discuss PDF program uses applicable to stamp collecting.
Created by (Adobe), PDF is modeled after the PostScript language (a page description language) and is device- and resolution-independent. Documents in the PDF format can be viewed, navigated, searched, and printed from any computer as well as forwarded to any other computer.
PDFs retain their appearance, as it was created on the originator’s computer, on the destination computer using Adobe’s Acrobat Reader.
Microsoft has announced support for PDF in the next release of Microsoft Office but Microsoft has also announced a competitive format called Metro.
The net is, if you can print it, you can save it in the PDF format to lock in the appearance. Also, PDF files are usually smaller than the native file formats. The recipient also does not have to deal having any special fonts installed on their system to view it correctly.
A newsletter produced in Microsoft Publisher has a typical Publisher .pub file size anywhere from 10 MB to 25 MB depending on the graphics in the publication. A high quality PDF version of the newsletter is only 3 to 4 MB. File size can vary dramatically on the number and types of images and the settings for image compression.
An additional advantage is the PDF can be more than a graphic image of the document. The text and graphics can have an identity so they can be copied from the PDF for use elsewhere.
However, these feature can be disabled by the author. For example, the CD-ROM versions of Scott’s Stamp Catalogue use PDF but it does limit user actions to searching and printing but not copying.
In addition to creating digital documents from applications like newsletters you can also use PDF to capture hard copy documents. The PDF can simply be a container for a graphic file like a scanned image but you can also pass the image through OCR (optical character recognition) program to convert the document into text with programs such as Adobe Acrobat. This is useful for archiving existing documents or converting them into an electronic format to save space or allow searching.
If you have a box or folder in a closet or file cabinet full of aging clippings from periodicals and journals, you can digitize these to reduce the clutter. For example, if you have been saving the Stamp Identifier articles in Linn’s Stamp News you could scan each article and then combine them into a single PDF to create an electronic book.
Other uses include converting older printed newsletters to a digital format, capturing album or exhibit pages for archival or research purposes in color, or saving backups of important hardcopy financial records.
For information you receive or find through the Internet (e-mail, discussion groups, and Web sites) that you may create printed copies to keep, consider creating a PDF instead. I use this for saving receipts of electronic transactions. One rarely needs a printed copy.
These can be stored on your computer for later use in case of a problem. You can be also to print articles from Web pages to PDF rather than creating a hard copy. The PDF saves the color as well so this also saves on expensive inkjet printing ink. ![]()



