<div dir="ltr"><div>Hi Bill,</div><div><br></div><div>I don't have a solution for you, but I do have a similar install in case it help. I'm also on Fedora 42, and I just tested, I can load into xtherion without issue both progressive and non-progressive JPGs. I am using therion-6.3.4-1.fc41.x86_64, which I believe comes from the jmbegley COPR repository.</div><div><br></div><div>The rpm I have installed requires libjpeg:<br>rpm -qR therion | grep jpeg<br>libjpeg.so.62()(64bit)<br>libjpeg.so.62(LIBJPEG_6.2)(64bit)<br><br></div><div>This library, libjpeg.so.62 is provided by libjpeg-turbo on my machine of which I have a slightly older version than you (3.0.2 vs 3.1.0):</div><div><br></div><div>rpm -q --whatprovides libjpeg.so.62<br>libjpeg-turbo-3.0.2-3.fc41.i686</div><div><br></div><div>Here are other jpeg related packages I have installed, in case it helps:</div><div>rpm -qa | grep jpeg<br>libjpeg-turbo-3.0.2-3.fc41.x86_64<br>libjpeg-turbo-utils-3.0.2-3.fc41.x86_64<br>mjpegtools-libs-2.2.1-7.fc41.x86_64<br>openjpeg-2.5.3-6.fc41.x86_64<br>libjpeg-turbo-3.0.2-3.fc41.i686<br>libnvjpeg-12-8-12.3.5.92-1.x86_64<br>libnvjpeg-devel-12-8-12.3.5.92-1.x86_64<br>mingw64-libjpeg-turbo-3.0.2-3.fc41.noarch<br>mingw32-libjpeg-turbo-3.0.2-3.fc41.noarch<br>libnvjpeg-12-9-12.4.0.76-1.x86_64<br>libnvjpeg-devel-12-9-12.4.0.76-1.x86_64<br>jpeginfo-1.7.1-4.fc41.x86_64</div><div><br></div><div>Let me know if you want me to check anything else on my machine, I'm happy to help.</div><div><br></div><div>Best of luck,</div><div>Jonny</div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Tue, Aug 19, 2025 at 9:35 AM Bill Gee <<a href="mailto:bgee@campercaver.net">bgee@campercaver.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hello everyone - This has been annoying me for a bit. Today I <br>
discovered it is actually a big problem.<br>
<br>
For the past few months - I do not remember exactly how long - When I <br>
add a background to a th2 file, I get a message about unable to load the <br>
file. Screen shot attached. For new th2 files I have got around it by <br>
using magick to convert the background images to PNG files. Easy and <br>
quick, though annoying that it has to be done at all. Many of those <br>
images come from a friend who scans the paper through a flatbed. He <br>
uses Windows, and I just assumed something about his scanner software <br>
was wonky.<br>
<br>
Today I went back to some stuff I last worked on several years ago. The <br>
th2 file failed to open the background. The message said the file was <br>
not available. I removed the background image and tried to reload it. <br>
BAM! I get the same message about unable to load and asking if the file <br>
is a progressive JPG! These background images did not come from my <br>
friend's scanner. They came from a 25 year old camera. Some are PDF <br>
files converted to JPG and others come from my flatbed scanner using xsane.<br>
<br>
These are files that worked several years ago. I have not changed them. <br>
Trying some other stuff ... It appears that xTherion will no longer <br>
load ANY jpg file. The question about progressive format is bogus.<br>
<br>
Does anyone have any idea what is going on?<br>
<br>
Yeah, I could go back and convert thousands of background images from <br>
all the maps I have worked on. It would take days to find and update <br>
all of them, and all the th2 files as well. But dang it - This should <br>
Just Work! And what happens if PNG files stop working, too??<br>
<br>
The system is Fedora 42. Therion is 6.3.4+dev, compiled back in April. <br>
I have several jpeg libraries installed:<br>
<br>
root@main2:~# rpm -qa | grep jpeg<br>
libjpeg-turbo-3.1.0-2.fc42.x86_64<br>
openjpeg-2.5.3-6.fc42.x86_64<br>
turbojpeg-3.1.0-2.fc42.x86_64<br>
openjpeg-tools-2.5.3-6.fc42.x86_64<br>
libjpeg-turbo-utils-3.1.0-2.fc42.x86_64<br>
libjpeg-turbo-devel-3.1.0-2.fc42.x86_64<br>
openjpeg-devel-2.5.3-6.fc42.x86_64<br>
jpeginfo-1.7.1-6.fc42.x86_64<br>
jpegoptim-1.5.5-6.fc42.x86_64<br>
mjpegtools-libs-2.2.1-8.fc42.x86_64<br>
<br>
I ran jpeginfo -i across some of these files. According to jpeginfo, <br>
they are NOT progressive format, as shown by the 'N' right after the bit <br>
depth:<br>
<br>
2021_04_01 SHN-017 CAVE SPRING CAVE PLAN VIEW X23-X26.JPG 1686 x 2952 <br>
24bit N JFIF,ICC Huffman,300dpi 1487615<br>
<br>
<br>
Thanks!<br>
-- <br>
===============<br>
Bill Gee<br>
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</blockquote></div>