🔤 Custom Fonts for EPUB Reader
Upload custom fonts to personalize your reading experience in BookLore's EPUB reader. Fonts from Google Fonts or Font Squirrel work well.
📥 Uploading a Font
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Navigate to Settings > Reader and scroll to the Custom Font Library section
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Click the Add New Font button
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Click the upload area or drag and drop a font file
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After selecting a file, a preview and name input appear. Enter a display name (or keep the filename).
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Click Upload Font to save
Supported Formats and Limits
| Format | Extension |
|---|---|
| TrueType | .ttf |
| OpenType | .otf |
| Web Open Font | .woff |
| Web Open Font 2 | .woff2 |
- Max file size: 5 MB per font
- Max fonts per user: 10
- Storage location:
~/booklore/data/custom-fonts/
If you already have 10 fonts, delete one before uploading.
🎨 Managing Fonts
Your font collection is displayed in Settings > Reader > Custom Font Library.
To delete a font, click the trash icon on its card and confirm. If the deleted font was selected in your preferences, it reverts to the default.
⚙️ Using Custom Fonts
Global Default
Set a custom font as the default for all EPUB books in Settings > Reader > eBook Reader: Default Settings > Typography > Font Family.
Per-Book Setting
While reading an EPUB, open Settings > Typography in the reader header. Custom fonts appear at the bottom of the Font Family dropdown.
Custom fonts only apply to the web-based EPUB reader. PDFs, comics, and device sync (Kobo/KOReader) use their own font settings.
🔧 Troubleshooting
| Issue | Solution |
|---|---|
| File size exceeds 5 MB | Convert to WOFF2 format using Transfonter for better compression |
| Font doesn't appear in reader | Hard refresh the browser (Ctrl+F5 / Cmd+Shift+R), then re-select the font in preferences |
| Font renders incorrectly | Re-download from the original source, or try a different weight/version |
Only upload fonts you have the right to use. Free fonts from Google Fonts and Font Squirrel are typically safe. Commercial fonts may have restrictions.