Formats & Files

How to Import Books from a ZIP or 7z Archive

November 12, 2026 · 3 min read

Save time when unpacking multi-volume sets or public domain book bundles. Learn how GemReader inspects and extracts books directly from ZIP and 7z archives without cluttering your phone with extra files.

Why Import Directly from Archives?

Digital book bundles, coursework packets, and open-access anthologies often arrive as a single compressed `.zip` or `.7z` archive. On mobile devices, manually unzipping an archive typically leaves you juggling duplicate files, extra folders, and unwanted text notes.

GemReader streamlines this process by inspecting archives directly. It automatically detects valid book formats inside, skips non-book clutter like text notes or license files, and copies the titles straight to your reading shelf.

What You'll Need

Before unpacking your books, check that you have:

• **Platforms**: GemReader installed on your phone or tablet (Android or iOS). • **Supported Formats**: A `.zip`, `.7z`, or `.gempack` archive containing supported books (EPUB, PDF, CBZ, FB2, MOBI, AZW3). • **Storage**: Sufficient device storage to store the extracted books in your library.

Step-by-Step Instructions

1. Open GemReader and tap the **+** button on your main **Library** screen. 2. Tap **Import books** from the action menu. 3. In your device file manager, locate and tap on the `.zip` or `.7z` archive you downloaded. 4. GemReader will examine the archive, verify available device space, and unpack the readable books directly onto your shelf. 5. If the archive is protected with a password, a secure password dialog will appear asking you to enter the decryption password before extraction begins. 6. Once extraction finishes, your newly unpacked titles appear immediately on your active shelf ready to read.

Helpful Tips & Common Questions (Librarian's Advice)

• **Filtered Clutter**: If an archive includes non-book items like cover preview images, license notes, or readme files, GemReader filters them out so your bookshelf remains tidy and uncluttered. • **Preserving Collections**: If you want your bundle kept together, open or create a dedicated collection first (such as *Philosophy Anthology*), then import the archive while inside that folder. • **Deleting Original Archives**: Once GemReader finishes extracting your titles to your shelf, you can safely delete the original compressed `.zip` or `.7z` file to free up storage space.