Libella — Support

For help with Libella, email libella@iamavk.info.

Bug reports may include your device model, OS version, Libella version, PDF/DjVu format, reproduction steps and screenshots. For a document-specific bug, attach the document only if you are comfortable doing so and have the right to share it. Avoid sending sensitive or confidential files unnecessarily.

Frequently asked questions

Which formats does Libella open?

PDF and DjVu. EPUB and Markdown are planned.

Does Libella upload documents?

Libella processes documents locally and does not upload them to AVKSoft servers or cloud services. Apple or Google operating-system or cloud backups may include app data according to your platform and account settings.

Do I need an account?

No AVKSoft account is required.

Does reading require an internet connection?

Normal reading does not require the internet. A connection may be required for App Store or Google Play purchase-related operations.

What does Libella Pro include?

The currently implemented Pro capability is text search in documents containing searchable embedded text. Text selection and copy, margin crop, reading color filters, DjVu to PDF conversion and OCR are planned, not currently available. OCR is planned after version 1.1; image-only scans may therefore not be searchable.

How do I restore Libella Pro?

An explicit Restore Purchases action may be available in Libella on Apple platforms. On Google Play, purchase ownership and recovery are handled through Google Play. Apple and Google Play purchases are separate, and Libella has no account or backend that transfers purchases between stores. Recovery behavior should be confirmed against the current store setup.

Do purchases work across stores?

No. Apple App Store and Google Play purchases are separate.

How do refunds work?

Purchases and refunds are handled by the store through which the purchase was made. AVKSoft does not receive payment-card details and cannot directly reverse an App Store or Google Play transaction.

Why is search unavailable?

Search requires a searchable text layer. Some scanned PDF/DjVu documents contain only images. OCR is planned for a future release and is not currently available.

Can Libella open password-protected PDFs?

Not yet.

What happens when I delete the app?

Uninstalling normally removes Libella's local application data. Original imported files may still exist at their source location, and operating-system or cloud backups may remain separately.

Can I request deletion of support data?

Yes. Email libella@iamavk.info. See the Privacy Policy.