Booklover

General

View DRM-free eBooks and manga (PDF, ZIP/CBZ, RAR/CBR)
Support for JPG, PNG, GIF, HEIC, WEBP, AVIF, JPEG XL (iOS 17+) images in archived files
Password-protected PDF files
Slide Over / Split View (iPad)
Appearance setting: Light / Dark Mode
Hardware keyboard support (Library and Reader View)
Trackpad gestures
iCade-compatible device support
Prevent screen dimming when inactive
Sound effects (ON/OFF)

Various ways to add books: Finder (Mac), iTunes (Windows), AirDrop, the Share menu (multiple files), drag and drop from other apps, "Open in", etc.
Import book files from cloud storage services (iCloud Drive, Dropbox, Google Drive, OneDrive, etc., accessible in the Files app)
Automatic sync of book files in iCloud Drive/Booklover, with on-demand caching (download)
Access and manage books stored In This App via the Files app (On My iPhone/iPad → Booklover)
Include/Exclude book files stored In This App in device backups (ON/OFF)
Relocate files between iCloud Drive/Booklover and the device
Manage book data and content files separately (Ghost Books)
Manage duplicate content files
Edit filenames
Transfer book files to other apps: "Open in", AirDrop, drag and drop, etc.
Delete book files
Export the book file list as text
Manage/Clear cache files

Section books by genre
Collapse genres (individually / all)
Genre section header size (S / M / L)
Switch between Grid/List Views
Book cover size in Grid View (S / M / L)
Show the sidebar side by side in landscape on iPad (Overlay / Side by Side)
Cover accessories: Reading Status, Last Opened, Favorite, Tags, Bookmarks (individually ON/OFF, color / monochrome)
Sort books by Author, Publisher, Title, Filename, Date Published, Date Added, Date Modified, or File Size
Library Navigator (ON/OFF)
Alphabetical index labels (ON/OFF)
"Responsive Shadow" (page volume shown as the shading of a book)
Shadow rendering (ON/OFF)
History lists (Added / Opened books)
Reveal the last-read book in the Library (from the menu)
Context menu for each book (long-press a book cover)
HUD overlay: Filename, Title, Author, Publisher, File Size, Format, Number of Pages, File Location
QuickLook preview
Fast scrolling with imageless covers (long-press the Scroll Slider)
Book selection: select multiple books by sliding a finger, select all books in a genre

Search books by filename and other metadata
Exclusion operator (-) in search text
Search Options (button on the trailing side of the search field)
Filter by Tags (button on the trailing side of the search field)
Search history (reorderable)
System-standard sidebar
Filter books from the sidebar: Reading Status, Favorites, Genre, Tag, Format, File Location, Bookmarks, etc.
Collapse/Expand sidebar sections

Page transition settings: Axis (Horizontal / Vertical), Style (Scroll / Continuous Scroll / Stack / Crossfade / Zoom Fade / Instant)
Progress direction: Left to Right / Right to Left (for vertical text, manga, Arabic, etc.). Can be set automatically from PDF attributes
Page layout: Automatic / Single Page / Two Pages (spread). Configurable separately for each orientation (Portrait / Landscape)
Adjust page spread gap (image pages only)
Adjust page spread position (insert an adjuster page at the beginning of the book body)
Binding shadow (ON/OFF)
Book composition setting: with / without cover section
Page sizing: Show All / Height-Fit / Width-Fit
Page trimming: trim specified areas from the page edges (per layout, with mirroring)
Image correction filters (images only): Contrast Enhancement, Manual Contrast, Grayscale, Color Inversion, Sharpness
Background color (including a dynamic background that matches the page)
Text recognition with Live Text (compatible devices)
Show/Hide the status bar while reading
Reading progress bar (ON/OFF)

Page thumbnail view (all pages, bookmarks)
Configurable tap actions on the side edges of the screen
Close a book by swiping up the screen
Move to the next/previous book: three-finger swipe, hardware keyboard (⌘ + ← / →), buttons beside the slider, from the first/last page (ON/OFF)
Book Settings menu while reading (ON/OFF)
Export (share) the current page: Page Image / Source Image

Text selection, search, and table of contents in PDFs (hierarchical image resources for ZIP/RAR)
PDF rendering mode: Render as PDF / Render as Image
Annotate selected text in PDFs (highlight, underline, strikethrough)
Add notes to annotations in PDFs
Save annotations to the PDF file
Annotation list: filter by type and highlight color
Add/Remove bookmarks
Add titles and notes to bookmarks
Show/Hide bookmarks on pages
Content Guides menu with the table of contents, bookmark list, and annotation list

Add/Edit metadata in Book Info: Author, Genre, Title, Date Published, Publisher, ISBN, other metadata
Detailed PDF file information (metadata)
Extract metadata from PDF properties
Auto-extract metadata from filenames, with extraction settings
Auto-extract tags from filenames or other metadata, with extraction settings
String replacement before metadata extraction
Batch search-and-replace of titles, authors, and their sort labels (selected books or the entire library)
Capitalize titles on extraction (ON/OFF)
"Sort As" field for Title/Author/Publisher
Ignore leading articles when sorting (The, A, An, etc.)
Reading status: Unread / Reading / Read
Favorite mark (heart)
Add/Edit genres and tags (alphabetical sorting, type to filter)
Cover image editor: auto/manual crop, images from the book, Photos, or Files
Default settings for newly added or reset books (can be applied to all books)
Batch edit settings, metadata, and tags of multiple books ("Select")
Reset books (multiple selection supported)