I generally scan with 300 DPI. Occasionally, I'll edit a page in
Gimp and then it gets saved with 70 DPI. As a result, this page will
be blown out of proportion in the resulting PDF.

It would be really cool if saving could also include an optional
normalisation step for the page resolution, such that all pages in
the final PDF have the same granularity.

Thanks,

If you right click on the image, you can correct the resolution.

Perhaps it would be more useful to select from a list of matching page
sizes (given the height/width ratio) here.

The problem with the user-defined tools such as gimp is that they can
change everything, including the resolution, so gscan2pdf relies on
the metadata in the image that gimp saves. If you have a .pnm, there
is no metadata, and thus the resolution defaults to 72.

Of course, it would be possible to make the default user-definable in
preferences.

Or to add a warning when importing an image for which the resolution
is not clear. This might result in a lot of extra warnings.

Given that for most people, the page size is more important than the
resolution (obviously the two are linked), an implementation for this
would be to add a checkbutton to the save menu:

* force all pages to be <combobox of page sizes>

also sprach Jeffrey Ratcliffe <jeffrey.ratcliffe@gmail.com> [2016-05-31 19:41 +0200]:

Yeah, that sounds like what I was looking for.

Thanks for your consideration!

gscan2pdf is now only a transition package.