Horrendously slow PDF rendering with IPDF

ajnorth · 01-01-2008, 07:09 AM

Hi

Can anyone tell me why the default installed PDF viewer would take up to a minute to render some of the pages of this camera manual with graphics in them: http://service.us.panasonic.com/OPERMANPDF/DMCTZ2.PDF ?

Anything that can be done about it?

Thanks
Angus

daudi · 01-02-2008, 06:49 AM

I had journal article that did something like this. It was something to do with the embedded graphic (something from excel by the looks of it). I tried converting it to PS and then back to PDF but that did not help and I eventually just removed the page completely (with pdftk). If I was going to carry on I'd try extracting the page, converting it to something format, e.g. PNG, then converting it back to PDF and reinserting it in the right place. I'm no graphic guru and this is not based on any theory, except that PS and PDF are vector formats and PNG is a bitmap and going between one and other might help.

Daudi

Shaggy · 01-02-2008, 01:15 PM

I think I saw iRex say something in the past about having graphics in your document that are larger than the screen size makes the PDF viewer have to rescale them on the fly, which can be slow. Especially if there are a lot of them.

01-01-2008, 07:09 AM	#1
ajnorth Member Posts: 17 Karma: 280 Join Date: Dec 2007 Device: iLiad	Horrendously slow PDF rendering with IPDF Hi Can anyone tell me why the default installed PDF viewer would take up to a minute to render some of the pages of this camera manual with graphics in them: http://service.us.panasonic.com/OPERMANPDF/DMCTZ2.PDF ? Anything that can be done about it? Thanks Angus

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01-02-2008, 06:49 AM	#2
daudi Addict Posts: 281 Karma: 904 Join Date: Oct 2007 Location: Kent, UK Device: iRex iLiad, Psion 5MX, nokia n800	I had journal article that did something like this. It was something to do with the embedded graphic (something from excel by the looks of it). I tried converting it to PS and then back to PDF but that did not help and I eventually just removed the page completely (with pdftk). If I was going to carry on I'd try extracting the page, converting it to something format, e.g. PNG, then converting it back to PDF and reinserting it in the right place. I'm no graphic guru and this is not based on any theory, except that PS and PDF are vector formats and PNG is a bitmap and going between one and other might help. Daudi

01-02-2008, 01:15 PM	#3
Shaggy Wizard Posts: 4,293 Karma: 529619 Join Date: May 2007 Device: iRex iLiad, DR800SG	I think I saw iRex say something in the past about having graphics in your document that are larger than the screen size makes the PDF viewer have to rescale them on the fly, which can be slow. Especially if there are a lot of them.

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