Re: Another possible gb.poppler bug?

[gbWilly <gbWilly@xxxxxxxxxxxxxx>]

On Monday, December 1st, 2025 at 23:39, Lee <t.lee.davidson@xxxxxxxxx> wrote:

> On 12/1/25 5:11 PM, gbWilly wrote:
> 
> > On Monday, December 1st, 2025 at 20:24, Lee t.lee.davidson@xxxxxxxxx wrote:
> > 
> > > On 12/1/25 9:48 AM, gbWilly wrote:
> > > 
> > > > The file: E16536_PRIME_B550-PLUS_UM_WEB_051420.pdf -> loads internal thumbnails
> > > > The file: F16866_TUF_GAMING_B460-PLUS_UM_V2_WEB.pdf -> does NOT load internal thumbnails
> > > 
> > > Maybe that's because "F16866_TUF_GAMING_B460-PLUS_UM_V2_WEB.pdf" does not contain any embedded thumbnails.
> > > 
> > > I uploaded that file to https://pdfcrowd.com/inspect-pdf/. There are no "Thumb" references.
> > > 
> > > "E16536_PRIME_B550-PLUS_UM_WEB_051420.pdf" wouldn't finish loading there. But, it did at https://pdfux.com/inspect-pdf/. It has
> > > thumb references and your test project finds them.
> > > 
> > > "PRIME_PROART_TUF_GAMING_AMD_AM5_Series_BIOS_EM_WEB_EN.pdf" loaded at https://pdfcrowd.com/inspect-pdf/. It has Thumb references
> > > and your test project finds them.
> > 
> > I'm trying to understand that page
> 
> 
> Which page? https://pdfcrowd.com/inspect-pdf/ ?
> Just upload the PDF, let it analyze it, and then use your browser's search function to find "Thumb".
> It's a bit more complex with https://pdfux.com/inspect-pdf/.

I was looking at the last one, the complex one, didn't even notice there where two links.


> I may have guessed wrong about there being no Thumbs in the F16866* file. To my knowledge, Okular will not display thumbnails if
> there are none in the document. But, it does for that file.
> 
> What may be the issue is, that file appears to be PDF version 1.4, while the other two are 1.6 or 1.7. Perhaps the thumbnails
> are referenced differently in the earlier version.


That exactly what I mean. I have the idea that there are thumbs in several of the files I open, the self render is just a workaround for when nor thumbs are found internal.
And just as with the pages, could there something missing (another reference as you say) that prevents from retrieving the thumbs in certain files. That is what I would like to know.

Is it poppler or is it me ;-)


gbWilly

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Gambas3 for Debian/Ubuntu

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