OK, some experimentation has allowed me to answer some parts of my own question, but only to throw other parts into deeper murk.   1) Yes, any explicit landscape/portrait selections are ignored by the Poster-print option. It decides for itself. 2) Via the 'Preferences' button I can get to my normal printer settings. If I select 'Borderless printing' there then it does affect the operation of the Poster-print.   However, the effect of the 'Overlap' field is a complete mystery. Varying this setting, I either get a white margin on one or both of adjoining sheets in the series of printed pages. Whether it's one or two, and what the sizes of the margins are, seems to bear no correlation to the active Overlap setting. If I also select 'Borderless printing' then it just complicates things even further.   Given that there is no real documentation for the Poster-print then I can only hope that someone in the community has inside knowledge of the algorithms being used, or extensive experience of trying to make it work themselves. ... View more

It's a Canon MG3600 Inkjet multifunction printer, but I don't see how margins are related to the model. When printing other documents, I can produce "borderless" output quite easily.   There were a number of questions in the original post because I find the Print dialog a little confusing. For instance, I can get from there to my normal Print preferences, where I can request "borderless" printing, but is that ignored in a similar way to the other settings I mentioned (see above)?   Is it possible to define a particular page setup (or "form") for the printer that I can select as a special page type from Acrobat? (I am not an expert on this stuff). ... View more

My newer laptop is Windows 7 (I don't like 10 at all) so that's good, if I could just find a replacement installation file or CD. What I am trying at the moment is the following -- maybe someone can tell me whether it sounds OK:- 1) I have a partial installation on the new system. Files such as EXEs files are missing. There may even be some DLLs that haven't been copied or registered properly (cannot tell). 2) I am copying all the installed files from my older system over the top of the partial installation. They're from the same CD so there should not be any compatibility problems. Of course, it doesn't mean that everything needing to be registered actually has been registered. 3) I will then go to the 5.0.2 "update" kit on the Adobe site and execute that. I am hoping that it at least sees a complete set of files, and that its update will ensure registrations are then completed. ... View more

The CD must have a damage (not visible) as it pauses with a CRC checksum error. This prevents the main part of the installation from completing but it does carry on to the next stage of installing shared files. When I look at what has been installed, the most obvious omission is any EXE file ... View more

My newer system is only Windows 7 so there shouldn't be any problems that I can think of (based on portability of other software). I was hoping that a full version was available since there was a 5.0.2 update available. Suspecting that I might be out of luck, I even looked for a non-official copy but no one seems to have saved one ... View more