Files Taking a Long Time to Upload Into the _INBOX

We recommend that you upload digital review copies optimized for the web rather than PDFs optimized for printing, as print-ready PDFs take a long time to upload and download. 

We suggest that your files should be 80 MB or less, in order to go through our auto-import process and download and render well for readers. If you need our help or input to optimize your file down to a reasonable size, please refer to the instructions in this section, or email us at concierge[at] with specific questions.

Note: in order for us to send a file to a Kindle, the file must be 24 MB or less.

PDFs can be optimized very easily for the web; please see our recommendations on optimization.

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