Reading two column format documents on Kindle

One of my problems with my Kindle reader has been the inability to read two column format conference papers. It is a pain to keep scrolling on the device to switch columns and none of the converters I have checked out could reflow such documents correctly. 

Finally, there is a good way to convert two column format pdf documents to azw format. And the solution surprisingly comes from Amazon! Its been around for sometime, I believe. 

You can use the Send-to-Kindle feature to do the conversion. For this:

-  You have to configure your send-to-kindle e-mail id (say, anoopk@kindle.com) in your Amazon account from Manage Kindle->Personal Document settings and authorized senders' e-mail ids. 

- Now, to convert your documents, just send a mail to anoopk@free.kindle.com attaching the document and with 'convert' as the subject. You can send multiple documents  for conversion. 

- You will get a mail, with a link to down the 'azw' format file. 

- The bonus is, if your Kindle is on Wifi - the converted document will be directly delivered to you Kindle. 

Some observations:

• The columns are correctly detected, so the reading experience is great. 
• Footnotes are a irritation, wish there was a way to get them deleted. 
• Tables, formulae and diagrams don't get converted properly, so it isn't very useful to read conference papers loaded with such stuff. Of course, the workaround is to have the pdf too on the Kindle and switch between the two versions.