|Re: I wish these were available to the HP user community...old programs...|
Message #19 Posted by Bill (Smithville, NJ) on 12 Nov 2006, 12:45 p.m.,
in response to message #18 by David Ramsey
2. I don't think it's worth spending extra time on each page to get a perfect white background and perfect black text. As long as the content is easily readable...
I'm not sure I agree with this. If the purpose to to create Archival material, then perfect white background and perfect black text would be best. Also with a very white background, the files can be a smaller size (better compression).
I agree that there's not much visual difference between a TIFF and a JPEG. I think the real difference is if the original is poor quality and a lot of editing of the scan needs to be done. In that case, it's better to scan to TIFF, do the editing and then final save in JPEG.
Question: Does the newest Acrobat do a better job (size-wise) when using JPEG's versus TIFF? A few years ago, I did several tests using TIFF's and JPEG's and really didn't see a big size difference between the two in the final PDF.
The spiral bound manuals are bad enough
Actually, if you're willing to spend a little time upfront straighting out the spiral comb, you can dismattle the manual, scan perfectly flat pages, and reassemble the manual. If you're very careful, you can recurve the wire spiral and not even tell that it had been dissambled. This is very easy to do with the single wire spiral and only a little more difficult with the double wire spiral.
I agree that with the bound manuals, you almost have to be willing to distroy one in order to get a flat scan. When I scanned the 32SII manual, I took it to a print shop where they use a heavy duty paper cutter to slice off about 1/8" of the bound portion. After scanning, I then used a 19 hole punch at work to reassemble it with a plastic comb. It's still a good manual to use for everyday use.
One last comment - if our goal is to achieve archival material, then the time should be spent erasing the image of the spiral wire, holes and any other artificats that may appear.
On several of the Manuals on the HPmuseum DVD, I have taken the PDF, exported the pages to TIFF files, used a image editor to edit each page to delete the edge binding, reassemble to PDF and then print double sided. I've done the same on some of the manuals that were originally scanned two pages at a time - split the pages, clean up the artifacts, and then reassemble into a pdf. The results are amazing when printed out. It takes a little time to do, but worth it in my opinion.
If you have both an earlier set of HPmuseum CD's and the lastest set, you can see an example of taking an existing PDF that had two manual pages per PDF page and the end result after cleanup. The manual is HP-28C Calculus book on CD-1. Version 3.1 of CDROMs shows two pages per PDF page and Version 5.0 HPmuseum DVD shows it as one manual page per pdf page - after exporting to TIFF, spiltting pages, cleaning up artifacts, and then reassembing.
I have several other manuals that I have cleaned up this way and will be sending them to Dave for inclusion on future CD's, if he wishes.
Of course, no matter how much I appreciate the best scans possible, this is, afterall, a hobby for most, if not all, of us, and we all have a lot of things pulling at our limited time.
Thanks to Dave Hicks for his time and energy to make the CD's and DVD's possible, and many, many thinks to everyone here who also make this endeaver possible.