JPEG and sizing for MyPublisher.com

I hope someone on this forum can help me out - I feel like a dummy!

I sent files to myPublisher.com and they sent me back the finished book, which

looks pretty bad - the skys are grainy and has banding.

I printed those same pictures on my Epson 2400 and they look great - I think

my problem might be connected with the conversion from TIF to JPEG. They want

the following specs in a JPEG:

11.33 inches wide

8.5 inches high

2040 pixels wide

1530 pixels high

I sized the pictures to those specs, where I fall short is in the file size -

they claim the above specs should give me a close to 9 MB file - I only get

2.7 or so.

I start out with a Canon 5D RAW file, convert it to TIF (16bit), make all the

adjustments, size it and convert to JPEG (after converting to 8bit mode of

course). Then I sharpen it and save it as a JPEG - and the max file size I

seem to be able to get is the 2.7 MB.

What am I missing? Is there something wrong with my workflow?

Thanks in advance for any help!

Juergen

What compression level are you using when saving the JPGs?

I tried them all - I chose maximum size and that got me to the 2.7MB file.

Even uncompressed 2040 x 1530 pixels x 3 bytes per pixel only gives around 8.9 MB.

 

Andrew

Andrew, thank you. You just confirmed what I suspected too - their file size spces are for uncompressed jpegs - in other words before you actually save them.