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Undo and Redo

Edit History and Backup Guide

Undo

In Reading Forest, you don't need to worry if you accidentally delete a book or make a wrong edit. Using the Undo function, you can easily cancel your previous action.

How to Undo

  • Keyboard Shortcut: Ctrl+Z (Windows/Linux), Cmd+Z (Mac)
    This is the most convenient method. Simply press the key to undo the previous action
  • "Undo" Button at Top Right
    Click the arrow icon at the top right of the screen (also available from "Edit" → "Undo" in the menu bar)

    Screenshot of the "Undo" button

    Left-pointing arrow icon

Actions You Can Undo

  • Adding a Book
    Cancel and remove a newly added book
  • Deleting a Book
    Restore a book that was accidentally deleted
  • Editing a Book
    Undo changes to title, author, notes, etc.
  • Adding Reading Records
    Cancel added notes or quotes
  • Deleting Reading Records
    Restore deleted notes or quotes
  • Editing Reading Records
    Undo changes to notes or quotes

Tip

Even if you delete something, you can restore it by pressing Ctrl+Z immediately. Stay calm and operate carefully.

Redo

If you want to cancel an undo operation, use the Redo function. You can re-execute an action that was once undone.

How to Redo

  • Keyboard Shortcut: Ctrl+Y (Windows/Linux), Cmd+Shift+Z (Mac)
    Re-execute the undone action
  • "Redo" Button at Top Right
    Click the arrow icon at the top right of the screen (also available from "Edit" → "Redo" in the menu bar)

    Screenshot of the "Redo" button

    Right-pointing arrow icon

Usage Example

For example, if you accidentally deleted a book and restored it with Ctrl+Z, but then decided you wanted to delete it after all, you can delete it again with Ctrl+Y.

Edit History Mechanism

Reading Forest's edit history keeps your work safe while maintaining a simple and easy-to-understand system.

History Features

  • Undo Actions in Order from Most Recent
    You can cancel actions in reverse chronological order from the most recent
  • History is Temporarily Saved
    While using the app, edit history is kept in memory
  • History is Cleared When File is Closed
    When you save and close a file, the edit history is reset. A new history starts when you open it next time

Tip

You can undo as many times as you want before saving. Before making major changes, it's safer to save the file once.

Auto Backup

Reading Forest has a built-in automatic backup feature to prevent data loss. Even if your browser crashes or closes unexpectedly, you can restore your data.

How Auto Backup Works

  • Automatic Save to IndexedDB
    Data is automatically saved to the browser's built-in database (IndexedDB)
  • Data Can Be Restored Even After Browser Crash
    Even if the browser closes due to an unexpected error, data will be restored the next time it starts
  • Auto Backup Every 5 Minutes
    Editing data is automatically saved every 5 minutes

Diagram of the auto backup mechanism

Edit Data → IndexedDB (Browser Built-in Storage) → Auto Restore

Restoring from Backup

When you reopen Reading Forest after a browser crash, your previous editing data is automatically restored. No special operation is required.

Data Protection

To protect your important reading records, keep the following points in mind.

  • Regular Saving Recommended (Ctrl+S)
    Get in the habit of saving frequently with Ctrl+S when you reach a break point in your editing
  • Double Protection with Google Drive Integration
    Saving to Google Drive also creates a backup in the cloud
  • Export Important Data to a Separate File
    Regularly export particularly important records in JSON format for safekeeping
  • Sync Across Multiple Devices
    Using Google Drive, you can share data across multiple devices such as computers and tablets

Important Notice

Auto backup is saved to the browser's IndexedDB. If you delete your browser data, the backup will also be lost, so we recommend saving as a file regularly.