Scanned .pdf file size

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Hersheydmd
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Scanned .pdf file size

Post by Hersheydmd » Sat Apr 07, 2012 10:31 pm

I updated to version 12.1.15.0 and tested Duplex scanning.
Scanned two doubled sided pages. Yes it works. But the resulting pdf is more than double the file size compared to scanning with PaperPort.
The OD scan resulted in a 4 page 200 dpi, B&W pdf of 197KB.
The same scan when done with my PaperPort software results in a 4 page 200 dpi, B&W pdf of only 71KB.
Robert M Hersh DMD, FAGD
Univ. of Penn 1982
Brooklyn, NY 11234
https://www.facebook.com/pages/Robert-M ... 1471599429

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jordansparks
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Re: Scanned .pdf file size

Post by jordansparks » Sun Apr 08, 2012 6:56 am

Try version 12.2. It gives you more settings, and it remembers those settings per workstation. I can't remember if you can change compression for multipage scanning in 12.1, but you definitely can in 12.2.
Jordan Sparks, DMD
http://www.opendental.com

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Hersheydmd
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Re: Scanned .pdf file size

Post by Hersheydmd » Sat Apr 14, 2012 2:51 pm

Jordan,
As you suggested, I updated to the latest version 12.2.
I don't know if what you mean by "compression" is actually "resolution". I see that you can change the resolution. I don't see anything in the software about changing the compression.
I still get files that are 3-20 times as large compared to scanning with PaperPort (using the same settings in both programs: B&W, 200 dpi). I scanned with both the Twain driver and the WIA driver, using a Xerox Documate sheet-feed scanner.
I also noticed that with the first scan button you can only scan in a single page, whereas with the second scan button you can scan in a single page or multiple pages. With either scan button if you only scan a single page it results in a jpg file not a pdf. I can't figure out any way to make it give me a pdf. Not only that, even though I set the settings on B&W, 200 dpi, it is creating a file that is 24-bit color, 200 dpi. The file size is 340KB compared to creating a single page B&W pdf that is 17KB in PaperPort.
When you use the second (multipage) button and only put in one sheet you also get a color jpg file. You can only get a pdf if you are doing a multipage scan.

Scanned five pages with PaperPort - B&W, 200 dpi setting resulted in a .pdf of 58 KB.
With OD using the same settings - B&W, 200 dpi resulted in a .pdf of 157 KB.
I checked the files' properties.
PaperPort produces the pdf with OmniPage CSDK 16 software and creates a pdf version 1.5 file.
OD produces the pdf with with EZTwain Pro (x86) 4.00b3 using EZPdf 1.61 software and creates a pdf version 1.4 file.
Perhaps upgrading to a version 1.5 pdf will give better compression. Don't know, just guessing. Anyway, it isn't something we have control over at our end.
Robert M Hersh DMD, FAGD
Univ. of Penn 1982
Brooklyn, NY 11234
https://www.facebook.com/pages/Robert-M ... 1471599429

enamelrod
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Re: Scanned .pdf file size

Post by enamelrod » Sun Apr 15, 2012 4:30 am

mark for reply..jpeg pdf issue

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jordansparks
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Re: Scanned .pdf file size

Post by jordansparks » Tue Apr 17, 2012 1:04 pm

Hersheydmd wrote: I don't know if what you mean by "compression" is actually "resolution". I see that you can change the resolution. I don't see anything in the software about changing the compression.
No, compression. Specifically, it says, "JPEG Compression - Quality After Scanning". Don't you see that option?

If you can't get the gray scale setting to stick, then try switching to using the scanner options window instead.
Jordan Sparks, DMD
http://www.opendental.com

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Hersheydmd
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Re: Scanned .pdf file size

Post by Hersheydmd » Sat Apr 21, 2012 1:40 pm

jordansparks wrote:
Hersheydmd wrote: I don't know if what you mean by "compression" is actually "resolution". I see that you can change the resolution. I don't see anything in the software about changing the compression.
No, compression. Specifically, it says, "JPEG Compression - Quality After Scanning". Don't you see that option?

If you can't get the gray scale setting to stick, then try switching to using the scanner options window instead.
Jordan,
No I don't see that at all.
I have two scanners. When I click either scan button a Select Source window pops up.
Choices:
a) Canon MX870 (network scanner)
b) WIA-Xerox Documate 152
c) Twain-Xerox Documate 152
I choose one of three, usually (c). The next window that pops up is titled "Scanning to Application using EZTwain"
where I can adjust the Mode (B/W, color, greyscale), Resolution, Brightness, Options (Duplex, Define paper size, autocrop). I click the Scan button in the window and it scans.

The interesting part is that the first OD scan button ("Scan Document") will scan a single page and create a JPEG.
Using the second OD scan button (Scan Multi-page Document") will scan either a single or multi-page doc and create a PDF. I don't want JPEG's because they are much larger than PDF's, so I would only use the second button. The problem is that the PDF's are at least 3 times as large as the PDF's that I get when I scan using PaperPort, so that leaves me scanning in PaperPort and importing into OD, as I always did, which is a bummer.

The other problem in OD, is that when you select a PDF the Export button is greyed out. You can't export a PDF from OD, which is a problem if you want to e-mail it to another doctor or the patient.
Robert M Hersh DMD, FAGD
Univ. of Penn 1982
Brooklyn, NY 11234
https://www.facebook.com/pages/Robert-M ... 1471599429

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jordansparks
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Re: Scanned .pdf file size

Post by jordansparks » Sat Apr 21, 2012 2:31 pm

Hersheydmd wrote: No I don't see that at all.
Go to Setup, Imaging.
Jordan Sparks, DMD
http://www.opendental.com

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Hersheydmd
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Re: Scanned .pdf file size

Post by Hersheydmd » Sat Apr 21, 2012 6:37 pm

Found it. Tried it. Not practical. One scan may be duplex and the next not. It's better to have the options open each time. The options remember the last scan so you only have to change an option when you want to.

Jordan,
What about "Exporting". Why can't we export a PDF file?
Robert M Hersh DMD, FAGD
Univ. of Penn 1982
Brooklyn, NY 11234
https://www.facebook.com/pages/Robert-M ... 1471599429

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jordansparks
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Re: Scanned .pdf file size

Post by jordansparks » Sat Apr 21, 2012 9:01 pm

My main point was that the setup window is where you set your compression.
Jordan Sparks, DMD
http://www.opendental.com

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Hersheydmd
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Re: Scanned .pdf file size

Post by Hersheydmd » Sun Apr 22, 2012 1:44 pm

Agreed.
Separate issue: what about exporting a PDF from Images? Should be able to export it.
You know what. Nevermind, I just thought of a workaround. Open the PDF in Adobe and do whatever your want with it form there.
Robert M Hersh DMD, FAGD
Univ. of Penn 1982
Brooklyn, NY 11234
https://www.facebook.com/pages/Robert-M ... 1471599429

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