Re: [libreoffice-users] Re: How does 4.4 compress PDFs so well? Is there a quality problem?

Note, I am not looking at the code, I am just guessing in my answers, 
but, if you are testing, perhaps you can test these things:


On 11/21/2014 05:43 AM, Paddy Landau wrote:
> As for a pattern, I've not been able to find one. As mentioned before, there
> seems to be no pattern as to whether the images are linked or embedded,

I expected that Linked / embedded is related to how the documents were 
added when the ODT document is created. That said, i was not aware that 
you could simply link an image in a PDF document, so I have almost 
nothing to add related to this.

> large or small, resized or not.

This may be related to the perceived DPI of the original image as 
compared to the DPI of the created PDF. On export you can choose 
Lossless compressing, JPEG compression, and Reduce image resolution. 
Obviously this will not be true if you do not set "reduce image 
resolution". When I look at those three combinations, I expect that no 
combination allows for images to never be modified.

> It seems random. I'm sure it's not random, but still, I find it crazy to
> modify any of the images especially as they are always made larger (why take
> a lossless PNG image and make it into a bigger PNG?).
>
> Paddy
>
>
>
> --
> View this message in context: 
> http://nabble.documentfoundation.org/How-does-4-4-compress-PDFs-so-well-Is-there-a-quality-problem-tp4129492p4129794.html
> Sent from the Users mailing list archive at Nabble.com.

--
Andrew Pitonyak
My Macro Document: http://www.pitonyak.org/AndrewMacro.odt
Info:  http://www.pitonyak.org/oo.php


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