4
votes
1answer
79 views

Does Google use any “Language” flags / tags set within a PDF file when determining its language?

When determining the language of a HTML page, I understand that Google looks at any language declarations that the page owner has set, and then also applies its own language detection algorithms. But ...
2
votes
1answer
175 views

rel=“Canonical”: Ranking Benefits ? & specifying for PDF?

I think I understand the basic case for using rel="canonical": to tell Google which is the preferred URI when the same page/content may be accessed via more than one URI. This helps you avoid ...
0
votes
2answers
132 views

Backlink question - google viewer

I have documents (.pdfs) that I'm planning to post on a site using the google docs viewer. I think others may wish to embed the same documents on their sites since the documents will be updated, ...
5
votes
5answers
9k views

How to protect PDF file from indexing?

I have link to PDF document on a public web-page. How to prevent search engines to index this link and PDF document. The only idea that came to my mind is to use CAPTCHA. However I wounder if there ...
11
votes
1answer
286 views

Is Google a reliable document search engine?

I have a site with PDFs and Word documents that I know have been indexed by Google because they appear in search results with filetype:pdf (or doc), and if I search for some very specific terms with ...
10
votes
5answers
808 views

How can I get Google to index my PDF documents?

We are having troubles getting Google to index the PDF files in our site. There are about 50 PDF and range in size for 20 KB to a little under two megs. They are not protected, can be read ...