Moz Q&A is closed.
After more than 13 years, and tens of thousands of questions, Moz Q&A closed on 12th December 2024. Whilst we’re not completely removing the content - many posts will still be possible to view - we have locked both new posts and new replies. More details here.
Does google scrape links from PDF files? do these links pass link juice?
-
Title is pretty much the whole question.
-
I made a test and it seems that yes, the links from pdf count for ranking.
The test is on my Romanian blog http://seogan.ro/link-building-pdf-urile-o-sursa-de-linkuri-test
You can find an English translation here: http://www.seogan.com/pdf-link-building
Hope it helps.
-
Yes it does according to Google tech spec http://code.google.com/apis/searchappliance/documentation/50/admin_crawl/Introduction.html
which specifically states if follows html links in pdf 'It follows HTML links in PDF files, Word documents, and Shockwave documents'. Google's own api docs carry more weight than a comment in a forum_._ If they are licencing this out as an application it would suggest that the same technology is available in the main engine as does Dunamis's comment about a listing in a pdf document being found in search results.
You can test for youself by publishing a pdf with a link to a info page that does not show up in any other links. Include the pdf in your sitemap but not the test page and check if it shows in googles index site:yoursite.com the next time it crawls.
This also gives some insight in an interview with Matt Cutts - http://www.stonetemple.com/articles/interview-matt-cutts-012510.shtml
Eric Enge: What about PDF files?
Matt Cutts: We absolutely do process PDF files. I am not going to talk about whether links in PDF files pass PageRank. But, a good way to think about PDFs is that they are kind of like Flash in that they aren't a file format that's inherent and native to the web, but they can be very useful. In the same way that we try to find useful content within a Flash file, we try to find the useful content within a PDF file. At the same time, users don't always like being sent to a PDF. If you can make your content in a Web-Native format, such as pure HTML, that's often a little more useful to users than just a pure PDF file.
-
Google definitely does index the contents of pdf files. I found this out the hard way as I had a real estate pdf on my site that I wanted to have listed in the index, but I didn't know that the contents would be crawled. The pdf contained some listings that I was not legally allowed to advertise on my site. (It was legal for me to give someone a report with the listings in it though).
When another realtor was searching for their own listing, my pdf came up. I got in trouble. I'm ok now though.
-
Have a look at this article http://searchenginewatch.com/article/2067225/Google-Does-PDF-Other-Changes it explains some of the doc library search for pdf files and Google's statement here http://googleblog.blogspot.com/2008/10/picture-of-thousand-words.html.
Got a burning SEO question?
Subscribe to Moz Pro to gain full access to Q&A, answer questions, and ask your own.
Browse Questions
Explore more categories
-
Moz Tools
Chat with the community about the Moz tools.
-
SEO Tactics
Discuss the SEO process with fellow marketers
-
Community
Discuss industry events, jobs, and news!
-
Digital Marketing
Chat about tactics outside of SEO
-
Research & Trends
Dive into research and trends in the search industry.
-
Support
Connect on product support and feature requests.
Related Questions
-
How to create link from google redirect?
I have seen redirect links from google but not sure how to create one. Please guide if anyone knows the answer. Example: https://images.google.cv/url?q=https://moz.com
Link Building | Nov 5, 2024, 4:56 AM | Melissacarter3 -
When conducting a link building strategy does it matter the country the link is from?
We are a UK business and if we have links mostly from US based blogs and websites does this penalise us. The links are from relevant websites and topics. Should we be focusing on .co.uk sites
Link Building | Dec 24, 2019, 1:43 PM | Caffeine_Marketing1 -
In Google search console all of sudden a lot of backlinks have disappear at "Link To Your Site"
Hi after update in Google search console yesterday a lot of backlinks in "Link To Your Site" have disappear, before we had 43x domains now we have 12x domains linking to the site. I have checked the sites where we had link do-follow before and they are OK. Can you please tell me the reason what has gone wrong. And also please guide me in fixing the issue , Hope to hear from you soon..! URL: https://www.finanstopp.no/
Link Building | Mar 14, 2021, 10:02 AM | heleneolsen3 -
What is a good ratio of total links to linking root domains?
Is 100 total links for every linking domain too high? I suppose I could also look at ratios of sites that are doing well in the rankings.
Link Building | Jul 2, 2013, 6:54 AM | ProjectLabs0 -
Changing links
Hi guys i wanted you views on changing the anchor text of links. I have quality links coming in but with year terms such as 2012 in there, if i want to change them all to 2013 for example would it be badly seen by Google? I cant say i feel comfortable about doing it but they are my links and are related to our products. Any advice much appreciated.
Link Building | Jul 26, 2012, 12:14 PM | pauledwards0 -
Image only badges giving link juice!?!?
I see some chatter about badges, but no clear definition. A collegue of mine instituted badges on clients website, but these badges are only an image w/ hyperlink; no textual content. He is confident that this has worked successfully before as a link building strategy, which blew my mind. I thought we needed some text, and obviously optimizes anchor text for biggest benefit. Are these simple badges helpful, or do we need some html in there!? He also routes them through bit.ly to track impressions and clicks.. does that have any effect as well? Thanks!
Link Building | Nov 11, 2011, 2:57 PM | SwissNinja0 -
Do links within imbeddable widgets carry link juice?
I'm dipping my toes into infographic design. On of my desired outcomes is to gain links by having other sites embed my graphic. I'm considering using Tableau's interactive data visualization software to do so; thus creating a widget, embedding it on my blog, and including the embed code for others to post. Is it possible to include a juice passing link in such an infographic? I know its possible to include links inside the tableau graphic but not sure if they have straight SEO value. If these links are not juice passing would it be better to go with a simple image link that passes value?
Link Building | Nov 16, 2011, 8:10 AM | JesseCWalker1 -
How long does it take for link juice to pass
If I were to receive a follow link from a blogger with DA 40 PA 40 today, relevant anchor text linking to correct page, etc., how long do you consider it takes until maximum SEO effect is achieved? Thanks
Link Building | Jul 10, 2011, 8:51 AM | seanmccauley0