Troubles with multiple scanning

[Paulyus]

I use XnView 1.91.6 full and have some problems with multiple scanning to single PDF - the size of result file is much bigger than i expected!(3 grayscale images of text is about 3,5mb).I tried to use varios types of PDF compression but nothing changed.Is it bug or i do something wrong?

[xnview]

I use XnView 1.91.6 full and have some problems with multiple scanning to single PDF - the size of result file is much bigger than i expected!(3 grayscale images of text is about 3,5mb).I tried to use varios types of PDF compression but nothing changed.Is it bug or i do something wrong?

Do you have tried ZIP or LZW compression? Which size in pixels have the scans?

[Guest]

Yes,i did.It doesn`t matter which type of compression i used - result always the same!I scan with resolution 150 dpi.I thought there is problem between Xnview and TWAIN driver of scanner( HP 5590).

[xnview]

Yes,i did.It doesn`t matter which type of compression i used - result always the same!I scan with resolution 150 dpi.I thought there is problem between Xnview and TWAIN driver of scanner( HP 5590).

Ok, it's a bug

[Paulyus]

Thanx.Its a pity.If this bug of Xnview only with my scanner or with others too?Will you fix it?Can i test some older version of your very helpfull programm:)?

[oops66]

I use XnView 1.91.6 full and have some problems with multiple scanning to single PDF - the size of result file is much bigger than i expected!(3 grayscale images of text is about 3,5mb).I tried to use varios types of PDF compression but nothing changed.Is it bug or i do something wrong?

Did you try this for small pdf size ? (strange because JPEG compression works for me) :
http://newsgroup.xnview.com/viewtopic.php?t=13907
'mouse select some images(Ctrl+mouse) or tag images \ create \ multi-page file' to PDF.
Just set before to save to “Portable Document Format”: Options\PDF(write)\Compression: JPEG and (~90%) to have a small PDF file ( because ZIP compression is by default).

[xnview]

Thanx.Its a pity.If this bug of Xnview only with my scanner or with others too?Will you fix it?Can i test some older version of your very helpfull programm:)?

Yes, will be fixed in next 1.92

[Guest]

Did you try this for small pdf size ? (strange because JPEG compression works for me) :
http://newsgroup.xnview.com/viewtopic.php?t=13907
'mouse select some images(Ctrl+mouse) or tag images \ create \ multi-page file' to PDF.
Just set before to save to “Portable Document Format”: Options\PDF(write)\Compression: JPEG and (~90%) to have a small PDF file ( because ZIP compression is by default).

I use batch scanning right to PDF.Your method is a bit longer and it not so conveniently like batch scanning.

[oops66]

Did you try this for small pdf size ? (strange because JPEG compression works for me) :
http://newsgroup.xnview.com/viewtopic.php?t=13907
'mouse select some images(Ctrl+mouse) or tag images \ create \ multi-page file' to PDF.
Just set before to save to “Portable Document Format”: Options\PDF(write)\Compression: JPEG and (~90%) to have a small PDF file ( because ZIP compression is by default).

I use batch scanning right to PDF.Your method is a bit longer and it not so conveniently like batch scanning.

Well, I see.

[Paulyus]

Hello to everyone!I back again to my problem with batch scanning in to multipage PDF.
What we have -
XnView 1.92.1, HP 3390.
Settings - "Acquire into...",Multipage PDF with JPEG compression.
When i scan with 200dpi truecolor i have pdf-file about 200kb, but then i scan with 200dpi grayscale i have pdf-file over 2000kb.
I tried to change compression into LZIW,ZIP and others, but in general, nothing changes - smallest pdf-file i have only with JPEG compression and truecolor.
Is it bug or i do something wrong?

PS In version 1.91 pdf-file with JPEG comression and truecolor was over 2000kb too.

[xnview]

Hello to everyone!I back again to my problem with batch scanning in to multipage PDF.
What we have -
XnView 1.92.1, HP 3390.
Settings - "Acquire into...",Multipage PDF with JPEG compression.
When i scan with 200dpi truecolor i have pdf-file about 200kb, but then i scan with 200dpi grayscale i have pdf-file over 2000kb.
I tried to change compression into LZIW,ZIP and others, but in general, nothing changes - smallest pdf-file i have only with JPEG compression and truecolor.
Is it bug or i do something wrong?

PS In version 1.91 pdf-file with JPEG comression and truecolor was over 2000kb too.

If you try to save the scan in png (for example), and load/save by xnview in pdf, do you have the same size?

[Paulyus]

OK. i just did a some kind of experiment.
1. "Acquire into..." ;PNG; 200 dpi;true color
png-file - 4,7 mb then save as PDF (jpeg 40%) - pdf-file 266Kb
2. "Acquire into..." ;PNG; 200 dpi;gray
png-file - 2 mb then save as PDF (jpeg 40%) - pdf-file 4,8mb!!!!

[xnview]

OK. i just did a some kind of experiment.
1. "Acquire into..." ;PNG; 200 dpi;true color
png-file - 4,7 mb then save as PDF (jpeg 40%) - pdf-file 266Kb
2. "Acquire into..." ;PNG; 200 dpi;gray
png-file - 2 mb then save as PDF (jpeg 40%) - pdf-file 4,8mb!!!!

Could you send the original png file?

[Paulyus]

I've done it to REMOVED with 9 mb of attachments.

[xnview]

I've done it to REMOVED with 9 mb of attachments.

Ok, i've replied. Your picture is a 256 colors picture