About the autosave feature

The Autosave feature guards against losing your work in case of a power failure by incrementally, and at regular intervals, saving file changes to a specified location. The original file is not modified. Instead, Acrobat creates an autosave file of changes, which includes all the changes you made to the open file since the last automatic save. The amount of new information that the autosave file contains depends on how frequently Acrobat saves the autosave file. If you set the autosave interval to 15 minutes, you could lose the last 14 minutes of your work if a problem occurs. Frequent automatic saving prevents loss of data, and is especially useful if you make extensive changes to a document, such as by adding comments.

You can apply autosave changes to the original files when you restart Acrobat. When you close, save manually, or revert to the last-saved version of a file, the autosave file is deleted.

Note: If you use assistive technology, such as a screen reader, you may want to disable the Autosave feature so that you don’t lose your place when the file is reloaded.

The Autosave feature won’t work in the following cases:

• A document that has its security changed. You must save the document to re-enable automatic saving of document changes.

• A document created using the WebCapture feature or extracted from a larger PDF (Document > Extract Pages). You must save the document to enable automatic saving of changes.

• A document displayed in a web browser or incorporated into a container document that supports Object Linking and Embedding (OLE). This document appears outside the default file system and cannot support automatic saving.

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