You can select Undo, to undo the last modification to an image. The last modification will appear as text in the undo menu item(e.g. Undo Crop). If undo isn't currently available, this item will be grayed and the text will read "Can't Undo".
To Undo choose "Undo <action>" from the File menu.
Note: ImageViewer uses a simple disk based undo, which creates temporary files and a temporary folder(named Temporary Folder), which is located in the ImageViewer folder. When you quit ImageViewer, these temporary files and folder are deleted. If you see this folder, there was a problem deleting files in the folder, so I suggest deleting the folder manually as it is using disk space for no good reason.
Copy And Paste
Copying refers to placing a copy of all or part of the image into the clipboard. Once in the clipboard, the contents can be pasted into another application. If there is a current selection, only that portion is copied, otherwise the entire image is copied to the clipboard.
To Copy to clipboard, choose the "Copy" command from the Edit menu.
Pasting Into Another Application
To paste the contents of the clipboard into another application, open the target application and choose "Paste" from the Edit menu.
Another way to accomplish paste is to use drag-and-drop. Make a selection then move the cursor over the selection area, the cursor will change to an arrow. If you hold the mouse down, you can "drag" the selection to another application's window. If the target application supports receiving a drag, it will work just like paste.
Limitations: You cannot currently paste into an ImageViewer document.
Select All
Selects the entire image or list of images(if in a list view mode). If you have chosen Select All, the menu item text changes to Unselect All, which allow you to remove the image selection or for list views, change the selection to a single file(the first file in the list).
To Select All, choose the Select All command from the Edit menu.
Transfer To
Transfer allows you to open the current image file in another application, as though you had dragged the file's icon onto the application's icon. Transferring allows you to edit images in another application without losing image quality as can occur with copy/paste. The target application will be launched if necessary.
To specify the Transfer application use the File preferences panel. To Transfer, use the Transfer To command in the Edit menu.
Preferences
See file Preferences.
Editing Keywords And Comments
Comments are nothing more than text that can be saved along with an image's content. Keywords are similar, but are Mac-specific and are stored in a file's resource fork, thus can't be transferred to other platforms. ImageViewer displays and edits comments for both JPEG and GIF files. Keywords can be displayed and edited for all ImageViewer readable file types.
To edit keywords or comments, open the floating window for the appropriate task and type into the edit field. When you want to add keywords or comments to a number of files, you can save time by choosing the preferences option "Auto-Save Keywords and Comments". If this option is on, comments and keywords will be saved whenever you move to another file.
Another way to edit keywords or comments, choose the "Comments" or "Keywords" command from the Edit menu.
You can toggle the visible state of these windows via the Window menu.
Limitations: Currently, comments are only saved for JPEG and GIF files, you can type in the comments window for other file types, but the comments will be ignored(i.e won't be saved).
Image View Modes
ImageViewer allows a number of "View" modes to display images. Single image modes include: Fit To Window, Full Screen, and scaled display between 25% and 800%. There are two single image preview modes as well. List view modes include Gallery, Gallery Small, Text View, and Icon View.
Single image modes allow you to view an entire image in detail and to modify. List view modes are intended to allow viewing many files at the same time, depending on the list view mode and window size.
Use the view mode buttons to set the view display mode. You can also use the tab key to toggle between current list view mode and current single image view mode. You can select the image view mode from the View menu, or a list view(including Icon view) from the List menu.
Choose Reduce or Enlarge to step up or down in the scaling used to display the image(25%..800%).
Hint: To leave Full Screen mode, just about any command-key will work.
Auto Browse
Auto Browse is an ImageViewer feature that when activated, automatically steps through the files in the image list, displaying each file one at a time. Similar in concept to "slide show" features found in other applications, but doesn't require changes in view mode or interface.
Auto Browse works for both active and inactive windows, but turning too many windows "on" can cause sluggish behavior. Auto Browse can be used as a mini-batcher to create previews and icons.
To turn auto-browsing on or off either click the toggle button at the top of window (middle of small three buttons), or choose "Turn Auto Browse On/Off" from the View menu.
You can customize some of the Auto Browse behavior via Preferences "Display" panel. Auto Browse Pause allows you to set the number of seconds to pause before opening the next file in the list. Auto Browse Wraps Around, if set "on", the first file in the list is opened after the last file, if set "off", Auto Browsing stops after the last file. Skip Error Messages When Browsing prohibits error alerts while browsing.
