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This list of frequently asked questions will be updated as new questions arise. If you don't find the answer to your question here, please don't hesitate to get in touch with me.
PhotoQt is developed as open-source, meaning its source code is freely available to everyone and can be obtained by everyone for free. It is licensed under the GPL v2 or later, meaning that anybody can use and modify PhotoQt, as long as this license is kept (more info on the GPL v2 here). I decided to publish PhotoQt as free open-source software as I have been the happy user of numerous open-source projects myself, and this is a way I can give something back to the community.
You can find out what version you are running by executing photoqt --version on the command line, or by checking the About element when PhotoQt is running (default shortcut: i).
An overview of the configuration used for your build of PhotoQt can be obtained either by running photoqt --show-info from the command line or by clicking on the version number in the About element (default shortcut: i).
I always appreciate suggestions for new features. I can't give any promises that any particular feature will make it into PhotoQt (or maybe not until a later version), but I will consider and respond to any and all ideas.
A tip for increasing the chances that your feature request will actually be worked on: Be polite and respectful. It is sad that this has to be said, but being pushy or rude will move your feature request(s) down the list of priorities.
Note: Although donations are appreciated, it is not possible to pay to get features into PhotoQt!
I try to do my best to get back to you as soon as I can. However, there are two possible reasons for why I might not have replied to your email yet:
I'm developing PhotoQt in my free time for fun. But sometimes life gets busy and I have to temporarily put my work on PhotoQt on hold. But I promise that I will get to your email as soon as I can.
If your email is nothing but a list of requests or demands, without any greeting or anything, then I will likely ignore your email altogether. Unfortunately this happens fairly frequently. Please be polite and kind in your emails.
Depending on your system you might have different options available. There is an installer for Windows available, and PhotoQt is available in an increasing number of distributions. You can always compile the latest version from source (instructions here). The latest development snapshot is available on GitLab.
Although Windows 7 is not officially supported by PhotoQt (or by Qt6 for that matter), some have had success running the latest version of PhotoQt using the VxKex Windows 7 API Extensions. For questions and support of VxKex please refer to its git repository.
Please note that Windows 7 has reached its end of life in early 2020 and does not receive any more security updates. It is highly recommended to upgrade to a newer operating system.
If you are stuck on a system with an old version of Qt and you want to compile an old version of PhotoQt (with all its features and potential bugs), here are the latest versions of the code that work with Qt 4 and 5:
Qt 5: The latest version of PhotoQt that works with Qt 5 is v3.4 that you can find here: https://gitlab.com/lspies/photoqt/-/releases/v3.4
Some notes: The latest version of PhotoQt is %VERSION%, so even though there is a good overlap in features, some of them might be less polished. Any bug you find in v3.4 obviously also will not get fixed anymore.
Qt 4: The latest version that works with Qt 4 is v1.0 that you can find in the photoqt-legacy repository: https://gitlab.com/lspies/photoqt-legacy/-/tags/v1.0
Some notes: This is a very old version, so don't expect anything too similar to today's version of PhotoQt. You might be able to make the latest code in that repository work with Qt4 with some small patching and tweaks to the code.
PhotoQt uses a variety of image libraries to render and show all kinds of images. The exact selection of supported image formats depends on which library has been enabled when your build of PhotoQt was done, and also on the versions of said libraries themselves. If you are missing some image formats in your build check that your running the latest version of PhotoQt and inform the maintainer who compiled your build of PhotoQt. If you built it yourself, make sure that all desired image libraries are enabled and found when running cmake.
Faces can be tagged in a variety of different image formats, all formats that have write support for IPTC tags by Exiv2. In order to start the face tagging mode in PhotoQt load any image, open the context menu (by default this is done by right clicking), and select Tag faces. There is also a shortcut action available to start the face tagging mode, the default key shortcut set for this is Ctrl+F. To exit the face tagging mode you can press Escape on your key board or byyou can click on the exit button shown in the top left corner of the window.
The actual tagging is done by click-and-drag a rectangle around a face, following which you will be prompted to enter the name. Existing tags can be removed by clicking on them.
If you want to use PhotoQt under Windows Remote Desktop you might not be able to see any window once PhotoQt is launched. This is due to OpenGL not being available by default over Remote Desktop.
Depending on your system and preference, there are a few different ways to enable OpenGL over Remote Desktop:
Note: The above solutions are based on feedback received online and have not been tested by PhotoQt.
PhotoQt uses ImageMagick in order to render a large range of image formats. ImageMagick, in turn, relies on GhostScript to render EPS/AI files. Thus, in order to enable support for them, GhostScript needs to be installed on your computer. You can download the official installer from the GhostScript website right here. Make sure to restart your computer after installing GhostScript, otherwise it might not get picked up by your system.
link to here