JPEG Saver's config dialog — Main tab

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The main tab is where you can choose how JPEG Saver picks the images to display, how often to change the image, and which transitions to use.

JPEG Saver's Main tab

When the configuration dialog starts up, the first thing you see will be this tab. Apart from the controls within the tab, there are a few other items outside the tabbed area:

The rest of this page describes the controls on the Main tab.


This input sets the time between images changes. The time is shown in hours, minutes and seconds, and can be set to any value between one second and 24 hours.

You can type in a time in seconds or minutes and it will be converted to the HH:MM:SS format, for example typing in “90” will be converted to “00:01:30”, and “120:00” will be converted to “02:00:00”.


This drop-down box lets you choose the order that images are shown in. When the mode name contains a slash, the part before the slash is the folder mode and the part after is the file mode.

Images are displayed in alphabetical order within each folder. Folders are traversed in the order that they are listed in the folders list.
All the images are shown in order by filename, ignoring folders.
All the images are shown in order by the file creation time, ignoring folders.
Images are displayed starting with the first image in alphabetical order from each folder, then the second, and so on.
Images are displayed at random from the whole list of images available. The random mode has no memory of what it has displayed, so the same image can appear twice in a row, or similar images might appear one after the other.
A shuffled list is made of all the images available, and images are picked from this list in sequence. Each image will be displayed once. After the whole list has been shown it is reshuffled before images are picked from it again.
Similar to the alternating mode, an image is picked from each folder in turn. Instead of selecting the images in sequence, one is picked at random from each folder.
A folder is picked at random, then all the images within the folder are displayed in alphabetical order. After the images in the folder have been shown another folder is picked at random.
A folder is picked at random, its images are shuffled and displayed, then another folder is picked at random, etc.
All of the images in a folder are displayed in chronological order before moving on to the next folder.
The list of images in each folder in sequence is shuffled and displayed before moving on to the next folder.
The list of folders is shuffled this time, with the contents of each folder being displayed in alphabetical order.
The list of folders is shuffled, and the list of images within each folder is shuffled. This means that all the images in each folder are shown in a random order, and all the folders are shown in a random order.

Random start

This checkbox is enabled when the mode selected has some kind of order to it, and when checked chooses the first image shown at random instead of using the first image in the sequence.


JPEG Saver stores the details of the last image shown when it exits. This option is enabled when the mode is not completely random, and enabled restarting from the last image shown.


For modes that have an order, this option reverses it.

More controls

This button opens another dialog with a few options that would not fit on the main tab. The options are:

Maximum shape skip

By default this option will be off, and JPEG Saver will show all the images that it finds. Setting it to one of the numbers will make JPEG Saver skip over images that are the wrong shape for the screen - portrait images will be skipped on screens that are wider than they are tall, and landscape images will be skipped on screens that are taller than they are wide.

The number chosen is the maximum number of images that will be skipped when progressing through the sequence. After this many images have been skipped, the next image in the sequence is displayed, whatever its shape. Square images are shown on both landscape and portrait screens.

Reuse DB

This option lets you choose how long JPEG Saver will keep using the database without checking for updated folders. Before version 5.7 JPEG Saver checked every time it ran, which should catch any file updates but should not be necessary for most users. The default value for this option is still very low at 5 minutes, but you can adjust it up to two days.

Rescan folders

This option lets you choose how often JPEG Saver rescans folders that haven't had any obvious updates. Normally when files are written to or removed from a folder the modification time of the folder is updated, and JPEG Saver uses this to determine when the folder needs updating. The modification time is not always correct though, so the folders are periodically rescanned anyway, using the frequency chosen in this option.

Scan disabled folders

Enabling this option allows the desktop helper to scan through any folders that have been disabled, making it much more convenient to switch folders on and off in the config. This only affects the desktop helper's file scan though, the scan performed when the screensaver starts up never searches through disabled folders for changes.

Enable metadata scan

These options are both enabled by default, and allow JPEG Saver to search through your files to add their width, height and any tags to its database. These can then be used in filters to choose which files JPEG Saver displays based on their size or tags.

There are two checkboxes here to allow the scan to be disabled while the screensaver is running, or from the desktop helper database update, or both.

Disabling both options does not prevent the use of metadata in filters, and metadata will still be read from each file as it is displayed. The metadata scan is a bit resource-heavy though, so if you are not going to use filters then turning it off should improve performance.


Checking this box enables the interactive controls, which allow you to navigate through the images and perform some other useful functions. Moving the mouse will not exit the screen saver when this option is enabled - you must click a mouse button or press the “Escape” key.

Interactive options

Opens another dialog that contains options for the interactive controls. The first checkbox in here enables or disables a limited navigation mode, in which only the cursor keys control JPEG Saver and all other keyboard and mouse input exits the screen saver. With “Cursor key navigation only” enabled, all the other interactive options in this dialog are disabled.

Interactive options dialog

The second checkbox enables or disables updating image ratings using the “1” to “5” keys. Below that are inputs for the location of the shortcuts folder where the “s” and “S” commands will create shortcuts to or copies of the current file, and the filename for saving as a desktop wallpaper using the “F10” key.

Underneath those are five inputs that contain the favourite images, stored with “Ctrl-6” to “Ctrl-0” and activated using keys “6” to “0”.

Windows Explorer slideshow options

These two checkboxes at the bottom of the dialog, “Use sequential mode” and “Random start” are a bit different. When JPEG Saver is started from the Windows Explorer folder context menu as a slideshow, these options override the normal change mode and random start options, allowing it to act more like a normal slideshow viewer.


The main tab checkbox enables the video loader - by itself, it loads the first frame of a video file as an image, displaying it in the same way as any other image. The “Options” button takes you to a dialog where you can choose how JPEG Saver should deal with video files.

Play video

This option enables playing video - with it unchecked JPEG Saver will only load the first frame of each video file and use it as a static image. The other video options are ignored when video playback is disabled.

Note: videos are only played on the primary display.

Repeat completed video

When this option is enabled, JPEG Saver will repeat any videos shorter than the image change delay. When not enabled, the video will close when complete and the first frame will be shown until the next image is loaded.

Wait for end of video

This option makes JPEG Saver wait for the end of the video before moving on to the next image (if the video is longer than the change delay). If used with the repeat option, the video will play through at least once.

Enable audio

This option enables playing audio with the video. The slider underneath adjusts the mixer volume for audio playback from JPEG Saver, not the master volume.


The transitions button opens up the transitions dialog, where you can configure which are enabled and how quickly they run. You can also set up and edit your own presets there.

Transitions preset list

The drop-down list contains all the presets JPEG Saver has saved in the config, including user-defined presets and the predefined list. There is also an entry at the top of the list for reverting to the previously used list of transitions, whether it is a preset or not.

« Back to top of page Transitions dialog options »