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    # 如何解 drm 來備份自己的 e-book(以 google play 圖書為例) > 整個流程有三個大步驟,完成之後應當可進行備份。如果有任何疑惑,煩請先閱讀相關軟體的 readme 與介紹,那邊大概涵蓋八九成的疑問了。 ### Calibre 與初期教學 1. 首先,先下載以下軟體(此處使用 windows 示範,其他作業系統應當類似) [Calibre](https://calibre-ebook.com/download_windows64)、[DeDRM 最新zip檔](https://github.com/noDRM/DeDRM_tools/releases/latest)、[Adobe Digital Editions](http://download.adobe.com/pub/adobe/digitaleditions/ADE_3.0_Installer.exe) > adobe 記得要找 3.0 版的,比較容易成功。![](https://i.imgur.com/r7db6Al.png) 2. 安裝 Calibre、Adobe Digital Editions 並把 DeDRM.zip 解壓縮。 3. 進入 Calibre ,點選最右邊的三個黑點,再進入「偏好設定」(可能會有不同翻譯) ![](https://i.imgur.com/ph78yXQ.png) 4. 進入「匯入與匯出」的「將書本儲存至磁碟」,取消「將非英語字元轉換成英語同義字」再點選儲存,這將有效的保留書籍原名。 ![](https://i.imgur.com/hQ4R7vR.png) 5. 在「進階」的「外掛」中,選擇「從檔案載入外掛」。 ![](https://i.imgur.com/lY9a46j.png) 6. 找到剛剛解壓縮的 DeDRM 資料夾,進入後點選 DeDRM_Plugin.zip ,並重複同樣動作,點選 Obok_plugin.zip ![](https://i.imgur.com/dpyi6lR.png) 7. 都選擇是,兩個安裝完之後,重開 Calibre。 ![](https://i.imgur.com/5ecGEo4.png) 好,此時 Calibre 的部份暫時完成。 ---- ### Adobe Digital Editions 進入 Adobe Digital Editions,點選最右方的「說明」,點選「授權電腦」 ![](https://i.imgur.com/q7CKP55.png) > 此處應當是黑色,顯示灰色是因這邊註冊過了 註冊一個帳號,並建議使用類似 [bitwarden](https://bitwarden.com/) 的密碼軟體記憶。 ---- ### google play book 1. 進入 [google play book](https://play.google.com/books),點選「我的書籍」 ![](https://i.imgur.com/9d4kit5.png) 2. 點下載(可能有 epub 版、pdf 版。或是僅有 pdf 版) ![](https://i.imgur.com/yeTy0fi.png) 3. 會取得「書名-epub.acsm」或「書名-pdf.acsm」這樣的檔案。把檔案拖曳進 Adobe Digital Editions 。 4. 點選「以檔案總管顯示檔案」 ![](https://i.imgur.com/aroZfo4.png) 5. 此時會看到正常的 .pdf 或 .epub 檔名,但他還是受限於 DRM 的。將檔案拖曳進 Calibre,此時軟體會自動解除 DRM。 6. 現在電子書已經完完全全變成你的了,請妥善使用。若要匯出,則在書名點選「儲存置硬碟」就好惹。 ### Change log 2022/03/06 [https://github.com/apprenticeharper/DeDRM_tools/](https://) 這個專案已經停止維護,修改成分岔版的 nodrm,功能一樣,修改諸多舊版錯誤

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