Re: Free-/Open-Source-licensed JPG, JPG-XL, PNG, TIFF, PDF, PostScript files for print filter and OCR CI testing

All,

I have started adding some test documents to the repository, starting with some JPEG and PNG photo test files.


> On Feb 17, 2025, at 4:48 PM, Michael Sweet <[email protected]> wrote:
> 
> Till,
> 
> I created an OpenPrinting project to hold the sample files:
> 
>    https://github.com/OpenPrinting/sample-files
> 
> 
>> On Feb 17, 2025, at 4:22 PM, Michael Sweet <[email protected]> wrote:
>> 
>> Till,
>> 
>>> On Feb 17, 2025, at 1:30 PM, Till Kamppeter <[email protected]> wrote:
>>>> ...
>>>> to the IEEE-ISTO and the Printer Working Group, a program of the IEEE-ISTO.
>>> 
>>> Is this a well-known free software/document license? And if yes, which one?
>> 
>> I don't think it is a well-known "license", however the terms match the Creative Commons Attribution-NoDerivatives 4.0 International (CC BY-ND 4.0) license.
>> 
>>> ...
>>>> The libcups project includes the ipptransform tool, which can generate PDF, PWG Raster, Apple Raster, and PCL content at different resolutions from PNG, JPEG, PDF, and text input, and I can certainly revive that sample file script.
>>> 
>>> Could you please do so?
>> 
>> OK, I'll set something up as a starting point...
>> 
>>> ...
>>> As JPEX-XL is a format which I am newly adding to the filters, how and where could I obtain free sample images for that format?
>> 
>> I suspect you'll need to generate them.  I think ImageMagick supports conversion to the format, so that might be a way towards that goal.  The libjxl project also includes a cjxl utility that can convert PNG files to JXL, and libjxl also provides a Gimp plugin...
>> 
>> ________________________
>> Michael Sweet
>> 
>> 
> 
> ________________________
> Michael Sweet
> 
> 

________________________
Michael Sweet