Amazon expands sharing options with "Send to Kindle" tool

Amazon has released a tool that allows users to share documents from PCs with their Kindle accounts and mobile devices.

The company said its Send to Kindle software would allow users to backup and read documents on their Kindle accounts with multiple devices. The tool sends selected files to a user's Kindle account, allowing for access to documents on various devices equipped with the Kindle software.

Amazon has released a Windows application, which allows users to send files from their PCs to the Kindle Library service. The company said that an OS X version of the software will be released shortly.

"You can download archived personal documents from your Kindle Library on Kindle Keyboard, Kindle, Kindle Touch, Kindle for iPad, Kindle for iPhone and Kindle for iPod," the company said.

"Whispersync of notes, highlights, bookmarks, along with last-page-read is available on your archived personal documents that have been converted into Kindle format."

Amazon's Kindle line has dominated e-reader sales in recent months, with the tablet line accounting for 92 per cent of sales over the holiday season.

However, while Amazon has dominated e-reader sales, the company could soon face increased competition from Apple. The company is believed to be planning an event, which will include the expansion of the iBooks service.