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How to send large files to to get converted

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Showing 1-15 of 15 posts in this discussion
Initial post: May 16, 2011 11:53:35 PM PDT
Ximo Lacruz says:
Hello everyone,

This is my first topic, and I would like to ask for some advice in case you have find yourself in the same situation.

I love the .azw created when you send yourself a document to the free Kindle email, English is not my first language so I can use the dictionary, chance to enlarge the letters....

So here comes the problem, I use a @gmail account to send files but there is a limit of 25 MB and sometimes I use pdf documents bigger than that.

How do you usually overtake this incident ?

Many thanks in advance,

Cheers :)

Posted on May 17, 2011 12:01:24 AM PDT
Pamela says:
Can't do files that large, even thru Amazon's wifi. You need to manually transfer the files to your Kindle. If you want to convert them first use Calibre.

Posted on May 17, 2011 12:06:58 AM PDT
Ximo Lacruz says:
Thanks Pamela,

I use calibre but it converts them to .MOBI and I´m not completely satisfied with that format as has not the advantages of the .AZW

In reply to an earlier post on May 17, 2011 12:24:42 AM PDT
Pamela says:
What advantages does the azw format have over mobi?

Posted on May 17, 2011 12:37:58 AM PDT
PF says:
The .azw format is merely a .mobi file with Amazon's digital right management software included. It has the exact same set of XML tags as the .mobi files.

In reply to an earlier post on May 17, 2011 12:57:04 AM PDT
Last edited by the author on May 17, 2011 1:17:28 AM PDT
Ximo Lacruz says:
Thanks for the info, I thought there were differences, but I guess it all depends on the PDF subject of conversion.

So answer is simple then, use Calibre :)

In reply to an earlier post on May 17, 2011 5:07:38 AM PDT
Pamela says:
I was fairly sure that was the case, but who knows?

In reply to an earlier post on May 17, 2011 6:37:19 AM PDT
flipoid says:
The conversion issues you're having are probably due to the layout of the original PDF. I have found that PDFs with multiple columns, graphics, equations, etc. (anything more than straight text) don't convert as nicely as do more simple PDFs.

As others have said, the .mobi and the .azw formats are the same, with the exception of the DRM added to the .azw ebooks.

Posted on May 17, 2011 7:15:26 AM PDT
ShirleyKat says:
Amazon has a limit of 50 MB, but since you already have a greater limit with your email program, it hardly matters.

If your PDFs have two columns, you may be better off just dragging them to the Kindle directly. Using landscape orientation and the zoom and pan feature for PDFs, it's not that bad to read down the first column, then go back to the beginning of the second column and read down that one. Then turn the page and repeat.

Two-column PDFs don't always convert well no matter what method you use. The bad ones are those that put graphics in the middle of the two columns and put sidebars of other information all over the place. Those are candidates for reading without conversion.

If the single-column PDFs are not copy protected and don't have any graphics you need, then you can just save them as plain text files (using Adobe Reader). Then drag the text file to the Kindle's documents folder.

In reply to an earlier post on Feb 22, 2012 4:40:46 PM PST
Last edited by the author on Feb 22, 2012 4:43:07 PM PST
Tetra says:
I'm also a new Kindle user

Could you please elaborate on how you can manually transfer the files? I use a Mac.

Edit: Read the mods post at the bottom, and my question is answered. Thank you ShirleyKat

Posted on Mar 25, 2012 2:34:23 PM PDT
Jason Boring says:
Is the 50 MB limit apply to manual transfers?

Posted on Apr 24, 2012 4:36:48 AM PDT
ju8191 says:
You can use the software ForgetBox to send via gmail files bigger than 25MB.
The software allows to send big files with no size limitation and it is free.

Posted on Apr 24, 2012 5:27:05 AM PDT
Last edited by the author on Apr 24, 2012 5:31:57 AM PDT
Converting from PDF to Kindle can be very problematical depending on how complex the original PDF document may be. I can convert most PDF's into readable (not perfect) text with Calibre but there are times when it just can't do it, even with all of the available processing tweaks.

In those cases, the best solution I've found is to to optimize the PDF by running it through K2pdtopt first, then converting the optimized PDF with Calibre. Here's a detailed tutorial of how to do it:

K2pdfopt is freeware, is easy to use and is a great tool to have. Here's the link to the download and FAQ page:

In reply to an earlier post on Apr 24, 2012 5:34:27 AM PDT
Jazzy_Jeff says:
Thanks for that Link. It even supports Linux!

In reply to an earlier post on May 22, 2013 6:27:26 AM PDT
Last edited by the author on May 22, 2013 6:27:47 AM PDT is closed....
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Discussion in:  Kindle forum
Participants:  11
Total posts:  15
Initial post:  May 16, 2011
Latest post:  May 22, 2013

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