[echappin]

Dear Mike, dear Graeme,

thanks so far! I looked a bit into the details of the pdf.

- The pdf compatibility is 1.3 (Adobe 4.x)
- The scan was set at the machine's default of 300 dpi.
- Changing the compatibility in Adobe Acrobat X Pro to the latest does not change performance (nor has a significant effect on the file size).
- Maybe it is relevant to know the way the pdf was created: it was scanned by a large office scanner/printer unit, which is able to feed the pages automatically, which makes digitalizing my collection less of a pain.

Any additional help would be appreciated! Thanks in advance,

Émile