title_body: How to convert PDFs to readable Kindle format I have several class notes (more like books summarizing the material) that my college professors have provided in PDF form. As reading on a computer screen isn't exactly easy on the eyes (and gobbles unnecessary power compared to my Kindle) I'm looking for a way to convert these well. It would also be nice to be able to read/study in places where having a laptop would be impractical (e.g. weekend trips to places with no electricity provided, train travel).
  
  I have already tried multiple file converters, including zamzar and Calibre, and the quality of both is no improvement on reading on a computer screen. I either receive gibberish (particularly when it comes to mathematical formulas) or else strange line breaks that make it difficult to follow the flow of the text, or both.
  This doesn't help the fact that I have to concentrate more anyways as the texts are not in my native language (I'm studying abroad in Germany).
  Reading pdfs on my Kindle is also not a viable option, as the constant moving back and forth over the page breaks my concentration as well.
  
  I remember reading somewhere that converting to HTML, cleaning the code, and then converting to epub/mobi was suggested, but I can't find the article again and I wasn't sure what to do after converting the pdf to html (which seemed to work decently, and the HTML version looks good enough in my browser, besides small, rare garbled parts where certain mathematical symbols or special characters were, which I could live with and aren't of importance for non-math courses anyways).
  I would also be open to other roundabout ways of conversion (over an Open Office/Word text document, for instance) as long as the quality is good and easily readable.
  
  As a student my budget doesn't really include commercial optical character recognition software. Can anyone help with this issue?
upvoted_answer: Simplest way is to send kindle team an email with the PDF attached along. They'll send you back the converted .mobi format.
  
  
    Send to Kindle by E-mail Send documents to your Kindle as an email
    attachment You and your approved contacts can send documents to your
    registered Kindle devices, free Kindle reading applications, and your
    Kindle Library in the Amazon Cloud by e-mailing them to your
    Send-to-Kindle e-mail address ([name]@kindle.com). Your Send-to-Kindle
    e-mail address is a unique e-mail address assigned to each of your
    Kindle devices and free Kindle reading applications upon registration.
    
    How to send a document to your Kindle: To find your Send-to-Kindle
    e-mail address, visit the Manage your Devices page at Manage Your
    Kindle. Documents can only be sent to your Kindle devices or apps from
    e-mail accounts that you added to your Approved Personal Document
    E-mail List. To add an e-mail account, visit the Personal Document
    Settings page at Manage Your Kindle. To send a document to your Kindle
    device or app, simply attach it to an e-mail addressed to your
    Send-to-Kindle e-mail. It is not necessary to include a subject in the
    email.