Threaded Mode | Linear Mode

joeres · (This post was last modified: 04-19-2018 07:45 PM by joeres.)

Hi,

I am looking for the German translation of the HP 48S and HP 48G user guide. On the HP website or on the HP Museum USB stick is only the English version. Does anyone know if the scans are available in German?

Thank you and best regards
Joerg

damaltor · 04-23-2018, 04:06 PM

I am fairly sure that i have one in paper, but i think i have seen it online too. i cannot find it at the moment though but will search again later.

joeres · 04-23-2018, 06:59 PM

(04-23-2018 04:06 PM)damaltor Wrote: I am fairly sure that i have one in paper, but i think i have seen it online too. i cannot find it at the moment though but will search again later.

fine and thanks
Joerg

damaltor · 04-25-2018, 02:26 PM

I am sorry, but i am unable to find it again. Sad

joeres · 04-25-2018, 07:44 PM

(04-25-2018 02:26 PM)damaltor Wrote: I am sorry, but i am unable to find it again.

... too bad, but thanks for your efforts.
Joerg

Uli · 04-27-2018, 10:53 PM

http://h10032.www1.hp.com/ctg/Manual/c00043324.pdf

joeres · (This post was last modified: 04-28-2018 10:16 AM by joeres.)

(04-27-2018 10:53 PM)Uli Wrote: http://h10032.www1.hp.com/ctg/Manual/c00043324.pdf

Thanks, but this user guide is based on the HP 49g+/HP 50g user guide. I'm looking for the nice and beautiful HP 48S and HP 48G user guides from the 1990's (e.g. http://h10032.www1.hp.com/ctg/Manual/c00442262.pdf or http://h10032.www1.hp.com/ctg/Manual/bpia5212.pdf).

Joerg

joeres · 10-17-2018, 03:38 PM

Hi,
i have now scanned the two German manuals for HP48S and HP48G in 300 dpi. But the PDF files are very large, 380 MB and 288 MB. Does anyone have a tip or experience, how can I shrink the PDF files? The books in English have a size of about 40 MB and 35 MB and can actually be read well.

Thanks and best regards
Joerg

SlideRule · 10-17-2018, 03:48 PM

(10-17-2018 03:38 PM)joeres Wrote: … scanned the two German manuals for HP48S and HP48G … the PDF files are very large, 380 MB and 288 MB. Does anyone have a tip or experience, how can I shrink the PDF files… in English have a size of about 40 MB and 35 MB … Joerg

I use Acrobat XI Pro. Happy to give 'em a go IF I had the two files.

BEST!
SlideRule

grsbanks · 10-17-2018, 09:08 PM

(10-17-2018 03:38 PM)joeres Wrote: i have now scanned the two German manuals for HP48S and HP48G in 300 dpi. But the PDF files are very large

300dpi is way overkill for this kind of application. I'd scan at 100dpi instead. That will reduce your file size nearly ten-fold.

brickviking · 10-18-2018, 03:28 AM

The main reason for selecting 300dpi would not be for text recognition (as in this case) but for retention of inline image quality. Otherwise, if you don't have to keep the images (and don't care about them) then 100dpi makes far more sense; some of the text recognition programs I've used suggest this.

(Post 308)

ijabbott · 10-18-2018, 07:21 AM

Although much, much less common than PDF, DjVu format is better suited for scanned documents.

grsbanks · 10-18-2018, 07:44 AM

(10-18-2018 03:28 AM)brickviking Wrote: The main reason for selecting 300dpi would not be for text recognition (as in this case) but for retention of inline image quality

Not with printed material. All you'll get by scanning printed documents at that resolution is a faithful reproduction of the print screen and a load of moirage.

Eric Rechlin · 10-18-2018, 02:33 PM

(10-18-2018 07:44 AM)grsbanks Wrote:
(10-18-2018 03:28 AM)brickviking Wrote: The main reason for selecting 300dpi would not be for text recognition (as in this case) but for retention of inline image quality

Not with printed material. All you'll get by scanning printed documents at that resolution is a faithful reproduction of the print screen and a load of moirage.

Only with poor quality downsampling algorithms. As long as your image viewer uses something like the Lanczos algorithm (or better) it's not a major problem. And with higher DPI screens becoming more popular, it is becoming less and less of a concern. I'm all in favor of scanning at 300 dpi.

burkhard · (This post was last modified: 10-18-2018 02:45 PM by burkhard.)

(10-18-2018 02:33 PM)Eric Rechlin Wrote:
(10-18-2018 07:44 AM)grsbanks Wrote: Not with printed material. All you'll get by scanning printed documents at that resolution is a faithful reproduction of the print screen and a load of moirage.

Only with poor quality downsampling algorithms. As long as your image viewer uses something like the Lanczos algorithm (or better) it's not a major problem. And with higher DPI screens becoming more popular, it is becoming less and less of a concern. I'm all in favor of scanning at 300 dpi.

I agree. It drives me batty to finally locate a PDF of some scarce old manual and then find that somebody scanned at it 100 dpi. In the interest of squeezing the file, the images are often worthless. That happens all the time with slide rule manuals, where it REALLY is important to see those fine lines in the drawings :-) It astounds me that people put all that effort in and then don't (apparently) themselves look through the file afterward to see that it's utility is severely compromised by their byte-frugality.

I understand for things that were scanned in the 1990s, but storage today is cheap. Don't waste your time scanning archive material at such low resolution.

DavidM · 10-18-2018, 02:56 PM

(10-18-2018 02:33 PM)Eric Rechlin Wrote: Only with poor quality downsampling algorithms. As long as your image viewer uses something like the Lanczos algorithm (or better) it's not a major problem. And with higher DPI screens becoming more popular, it is becoming less and less of a concern. I'm all in favor of scanning at 300 dpi.

It's also worth noting that color depth (if any) is also a significant factor here. Does this scan need to be in color? If so, at what depth?

Most scans I make for "information transfer" (as opposed to photographic/image quality) are saved in 1 bit/pixel 300dpi (sometimes 600dpi for documents where more detail is required). If there's any gradient graphic content, I'll use dithering during the final conversion.

joeres · 10-21-2018, 04:47 AM

... Thanks all for the answers. I still found the tool https://www.pdfcompressor.net/index.html, which achieves good results.

SlideRule, I still have your email address from back then. Is this still valid?

Joerg

SlideRule · (This post was last modified: 10-27-2018 12:57 AM by SlideRule.)

(10-21-2018 04:47 AM)joeres Wrote: SlideRule, I still have your email address from back then. Is this still valid?

Still valid.

BEST!
SlideRule

SlideRule · (This post was last modified: 10-27-2018 09:08 AM by SlideRule.)

(10-21-2018 04:47 AM)joeres Wrote: SlideRule, I still have your email address from back then. Is this still valid?
Joerg

you have email;
Serie HP 48G Kurzanleitung 3 Ausgabe (4.66Mb),
Serie HP 48G Benutzerhandbuch 2 Ausgabe (30.8Mb),
HP 48S Benutzerhandbuch 2 Ausgabe (40.4Mb),
have been optimized & reduced {version 9}, with bookmarks & page numbering.

BEST!
SlideRule

joeres · 10-27-2018, 09:17 PM

(10-27-2018 01:02 AM)SlideRule Wrote: you have email;
Serie HP 48G Kurzanleitung 3 Ausgabe (4.66Mb),
Serie HP 48G Benutzerhandbuch 2 Ausgabe (30.8Mb),
HP 48S Benutzerhandbuch 2 Ausgabe (40.4Mb),
have been optimized & reduced {version 9}, with bookmarks & page numbering.

BEST!
SlideRule

Hi SlideRule,

sorry for delay, great job. But the best are the bookmarks. I will provide the manuals for the HP Museum Document Set.

Kind Regards and thanks again
Joerg