The options available under 'Image > Edit' are:

• Replace: Permit replacement of editable images. Can specify the folder from which the user can choose replacement images.
• Replace > Upload: Permit the user to upload their own images. Can specify permitted file types and sizes.
• Fitting Restrictions: Create rules around if the image must fill the frame or cannot be cropped by the frame. Changes cannot be applied, if a moved, rescaled or replaced image does not comply with this rule.
• Move: Permit the movement of the image.
• Resize: Permit the image to be resized.
• Resize > Aspect Ratio: Force the aspect ratio of a resized image to be maintained (or not).
• Resize > Min. Scale: Set a limit on the minimum scaling of the image.
• Resize > Max. Scale: Set a limit on the maximum scaling of the image.
• Rotate: Permit the image to be rotated. Can also set limits on the angle of rotation.
• Skew: Permit the image to be skewed.
• Min. DPI: Set a minimum DPI setting for rasterized images. Changes cannot be applied, if a rescaled or replaced image does not comply with this rule.

NOTE:
These rules apply to the image itself, not the frame. For editing of image frames, please see the lessons on 'Frame Rules'.

If users need to replace images in their jobs (e.g. for localization purposes), then this setting should be enabled.

If these users do not normally have access to an asset space (or if you want to limit their access to a specific folder), then you must uncheck 'Allow All'.

Specify a folder from which they can link images by clicking the 'Add' button and choosing a folder from the asset space.

• Recursive: Check this if users may also access sub-folders of the chosen main folder.
• Upload: Check this if users may also upload their own images to the folder.

If users may upload their own replacement images to a folder, then you can specify the permitted image formats and file sizes by unchecking 'Allow All'.

• Formats: Specify permitted file formats.
• Min. File Size: Specify the minimum permitted file size.
• Max. File Size: Specify the maximum permitted file size.

NOTE:
Users may upload images if either the 'Allow All' or 'Upload' boxes are checked in the 'Replace' option.

NOTE:
Because images may be resized in situ, their effective DPI may change. For this reason, there is no DPI setting here. Please use the 'Min. DPI' content rule instead.

If there are specific fitting restrictions that your users must follow when replacing/editing an image, you can set them here by unchecking 'Allow All'.

• Image must fill frame: The image must be at least 1px over the edge of the frame.
• Image must not be cropped: The image cannot even be 1px over the edge of the frame.

NOTE:
As you can see, these options are mutually exclusive, and should not both be enabled.

NOTE:
'Allow All' means that there are no restrictions on the fitting, which is the same as not checking the 'Fitting Restrictions' option.

If this option is checked, then the user may move the editable image.

NOTE:
The frame stays 'as is'. Only the image may be moved.

This option forces the aspect ratio of any editable image to be maintained by selecting 'Maintain'.

If 'Free' is selected, then the aspect ratio control is left to the user (it can be enabled/disabled via the 'Image Editor panel in the document editor).

NOTE:
Selecting 'Free' is equivalent to unchecking the 'Resize > Aspect Ratio' option.

NOTE:
Selecting this option will enable the resizing of editable images.

A 'minimum scale' value may be set to prevent users from making images too small. The 'Allow All' box must be unchecked and a percentage value set in the 'Limit' field.

NOTE:
The 'Limit' value must be between 0-100%.

NOTE:
Selecting this option will enable the resizing of editable images.

A 'maximum scale' value may be set to prevent users from making images too large. The 'Allow All' box must be unchecked and a percentage value set in the 'Limit' field.

NOTE:
The 'Limit' value must be between 100-10,000%.

NOTE:
Selecting this option will enable the resizing of editable images.

If images must be rotated by users, this option should be selected.

Uncheck the 'Allow All' box to define exactly what rotation is permitted for editable images.

Permitted rotation rules are created with the 'Add' button. Setting multiple rotation rules is permitted.

• From: Can have a value between -180º and 180º.
• To: Can have a value between -180º and 180º
• Reference: The rotation values can be set as 'relative to the frame' or 'absolute', depending on your requirements.

NOTE:
The image at the bottom-right of the table shows an example of the permitted rotation in green.

If this option is checked, then the user may skew the editable image.

NOTE:
The frame stays 'as is'. Only the image may be skewed.

This setting defines the minimum effective DPI permitted for the editable image.

Unchecking 'Allow All' activates the drop-down menu, which contains two options:

• Use document setting: This ensures that the minimum effective DPI must be the value as set in the document itself. If you edit documents with multiple DPIs, this could be used as a more general rule.
• Define value: A specific value may be given for the minimum effective DPI limit. This limit will be enforced regardless of the document's DPI setting.

NOTE:
The effective DPI is constantly being calculated. This rule takes effect if an image is resized as too large, or replaced by an image with too low a DPI. In such cases, it will stop the changes from being applied to the document.

NOTE:
This only applies to rasterized images.

NOTE:
A master document may be created containing images with a lower DPI than this threshold. If that is the case, such images can be left 'as is', but editing them will not be possible as it would break this rule.