Yes you can. I did it two ways:
1. send you pdf file to your kindle email address for conversion.
2. install Calibre in your PC, convert the pdf to mobi format, and send to Kindle device via usb cable.
Depending on your pdf, if your pdf has a lots of diagrams, flowcharts, equations etc. Kindle might not be able to display them correctly. You might have font size resizing and image positing issue. But if the pdf contains mainly text, it should work.
Here is the taken from Amazon website on Personal Document Service
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Kindle personal document service supports multiple file types including;
* Microsoft Word (.DOC, .DOCX)
* HTML (.HTML, .HTM)
* RTF (.RTF)
* JPEG (.JPEG, .JPG)
* Kindle Format (.MOBI, .AZW , prc)
* GIF (.GIF)
* PNG (.PNG)
* BMP (.BMP)
* PDF (.PDF); is supported in our experimental category. See below for details.
The above file types can also be combined in a compressed ZIP (.ZIP) file. ZIP files are automatically opened up by the conversion service, converted to the Kindle format if needed, and sent to your Kindle and stored in your Kindle library. Some complex PDF files might not format correctly on your Kindle.
If you prefer to have your personal PDF documents converted to the Kindle format so you can take advantage of Kindle functionality such as variable font size, annotation, Text-to-Speech, etc., type "Convert" in the subject of the e-mail when you submit your personal document to your Send-to-Kindle e-mail address
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