That's what I do today -  I have defined a single 24" x 40" page, which I add a bunch of images to.  If I need more paper, I modify that specific custom paper size in the driver.  When ready to print, I tweak the size and print.  I hadn't noticed the feature where QU displays the actual length precisely, that's very helpful.

Wouldn't it be cool if one of the driver's custom paper sizes could be "reserved" for QImage to modify...

Mike,

The Auto Roll feature could still be super useful to HP printer owners:   You could add images to a job while in Auto Roll mode, and then - at the end - you would know exactly how long to make the Custom Page in the driver!

Not as slick as drivers that support custom media length, of course, but much better than any other method.   This might be the foundation for using Auto Roll Mode to generate a TIFF export too?

One way I imagine it could work is that the user selects a "fake" QImage printer in the Printer dropdown, which allows the user to set the paper width to anything reasonable (e.g. 24"), and let Auto Roll control the length.  Once user has finished adding images, she will know exactly how long the paper needs to be.  User could then choose to either export the job as a TIFF for printing later at Original Size, or select a "real" printer (e.g. an HP printer) in the dropdown and manually set the length of the Custom paper to the size calculated by Auto Roll.

QImage could even put the length into the clipboard so it is easy to paste into the HP printer driver later, LOL.

This would be totally awesome!

Apologies for being so SLOOOW to respond to this!

Terry-M's trick of using "Original Size" on the print size is what was needed.

I'm printing on 24" roll paper.  The largest image I've printed with QImage is 24" by 96".  Awesome!  

I am pushing QImage into doing something it was probably not designed for...  namely, printing very accurate drawings for graphics arts purposes.  The print has to be pixel perfect (i.e., one inch in the image has to equal exactly one inch on paper when it is printed).

So I save a monochrome bitmap (BMP) image with 1200 dpi resolution, which I then place on a QImage page, as you would with any other image.

This brings me to the question:

When "Auto Crop" is turned on, the image is resized to fit whatever size I have chosen on the "Prints" tab - which is as I would expect.

However...  when I turn off Auto Crop by clicking the scissors with the image selected on the page, it is resized to something much bigger than it actually should be, at 300dpi...  it becomes 4x too large.

What I was hoping for was that the original resolution / size of the image would "survive" into the print on the QImage page, like a normal image does.

Is this some kind of issue with using monochrome bitmaps?  (It works perfectly in every other respect and prints beautifully when Auto Crop is on, but it is a pain to resize the Print every time).