Many webmasters release a PDF version of their content in PDF format; some also provide PDF e-books. Your website could reap the benefit in terms of SEO if your PDF files are indexed by SERPS.
The following are some tips will help you to get your PDF files indexed by various search engines:
PDF’s format can be either a text or graphic. Its better to publish your PDF in text format as most Search engines are unable to read the content of a graphic file. You can submit your pdf documents to certain bookmarking websites which will help you gain higher search engine rankings.
In PDF’s one can include title, author, subject and keyword. You can make fill this with relevant data. As with a normal webpage, the title should be keyword optimized. This will help search engines to locate your document for your specific keywords and to grant SEO rankings.
As far as Description part is concerned, there is no such option available within a PDF document. Here the search engines will find the first text of first paragraph and use that. So place suitable text at the start of document so that it is read first.
You can also include tags like alt tags for images using Acrobat PDF creator. This also can be done in Acrobat using the TouchUp Reader Order panel.
PDF files should also have links. Links should be added and suitable anchor text be used as well with the link. Since PDF’s over time would change hands, a link back within a PDF to your own website can really help bring extra traffic and it will also help your website to score higher rankings on Search Engines.
Version of PDF is also a thing to keep in mind. Make PDF document using fairly old Acrobat as it will ensure that search engines are able to read your PDF.
Using Fast View which is an Acrobat option allows PDF file to be loaded page by page rather than requiring to wait for the entire document to be downloaded before opening. Fast View allows speedy delivery of the page. As people in general don’t like to wait to long for a document to open, thus using this option you will be able to serve user with a page while other pages are being downloaded.
Size is one thing that does matter here .You should keep your PDF file to a reasonable size. Search engines don’t like to index files that take to long to download, thus it is most likely that SERPS will abandon indexing that file. To gain high rankings you need to keep your document size optimum.
Content is also one major factor. Content should be treated just as you would for any other webpage. It should be keyword optimized for keywords.
If you follow the above guidelines then PDF document can help your with your website to score higher rankings on search engines. It will also help you generate more traffic/clicks directly from links embedded within PDF document.
Source by Bhupinder Singh
Search Engine Optimization Tips For PDF's SEO Rankings