InkPress User Manual

1

Supported files & devices

• Supported formats: PDF / ZIP / CBZ / RAR / CBR / images (JPG, PNG, WEBP, BMP, GIF)
• Supported devices: Android 8.0 or later. Optimized for E-ink devices such as BOOX/Onyx (also works on regular Android devices).
• Encrypted PDFs can be opened by entering the password.

2

Getting started (set up your library)

On first launch, an onboarding tour (4 pages) appears: (1) Set up your library, (2) Reading & settings, (3) Bookmarks & notes, (4) Widgets. You can replay it later from "Settings → Help & support → View the getting started guide again."

STEP 1

Set up your library

STEP 2

Reading & settings

STEP 3

Bookmarks & notes

STEP 4

Widgets

Registering library folders

1. 1Tap "Choose folder" on the empty screen, or go to "Settings → Bookshelf & files → Change Bookshelf / Add Bookshelf."
2. 2Select a folder on your device that contains books (you can register multiple folders).
3. 3Once registered, the books in the folder are scanned automatically and cover thumbnails are generated.

3

Using the library

Opening & finding books

• Tap a book to open it. Tap a folder to go inside, and use the Home / Back buttons at the top or your device's back key to move around.
• Resume the most recent book instantly from the "Recently read" card at the top of the screen (tap × to hide it).
• Pull to refresh to rescan your library (it skips quickly if nothing in the folder has changed).

Sorting & organizing

• Use the sort icon at the top to choose name (A-Z / Z-A), date (newest / oldest), or custom (manual).
• Drag & drop: Long-press a book and drag to reorder. Drop one book onto another to create a folder (it switches to custom order automatically).
• Multi-select: Long-press a book → "Select multiple" to act on several at once.

Per-book menu (long-press)

Long-press a book to access the following actions.

About deleting

Covers & file name display

• Choose a cover size of small / medium / large (Settings → Bookshelf & files; put it in "Favorites" at the top of the settings home and you can change it from there too).
• Showing the file name and extension below the thumbnail can be turned on/off independently.

4

Reading (reader controls)

The first time you open a book, an operation guide (a diagram of tap zones) for your reading direction is shown once.

Reader menu bar (tap the center to show it)

Sleep

Table of contents

Set as cover

Auto trim

Quick adjust

Book settings

Turning pages

• Swipe: Swipe left or right to turn pages (up/down in vertical mode). Turn it off in Settings → Reading → Swipe to turn pages; while zoomed in, swiping pans instead.
• Page-turn animation (Settings → Reading) makes the page follow your finger. Leave it off on E-ink devices (the default there).
• Volume buttons: Volume down = next, volume up = previous. You can reverse this in settings.

Zoom & display

• Pinch to zoom in and out (up to 4×), and double-tap to return to the full-page view (reset zoom).
• Auto Crop: Detects the margins and zooms automatically to display text larger (via the reader's menu button).
• Zoom / position lock: Fix the zoom level and position so every page is read within the same frame (handy for trimming margins on scanned books).
• Quick adjust: Tune contrast, saturation, and monochrome on the spot while previewing the result.

Moving & navigation

• Tap the center to show the top and bottom menu bars.
• Table of contents (TOC): Jump from the PDF's TOC tab and the thumbnail list tab.
• Jump to page number: Enter a number to go there.

Saving your progress

Your reading position is saved automatically when you switch apps or the screen turns off, so you can pick up where you left off next time (you can also have it open automatically on startup via "Settings → Reading → Resume last book on startup").

5

Layout settings (per book & per folder)

Open these from the "Book settings" button inside the reader, or by long-pressing a book/folder in the library → "Reading settings / Folder settings."

Settings are inherited in the order folder → subfolder → book (priority: book > subfolder > parent folder). Use the "Make folder default / Apply to entire folder" buttons to set them in bulk.

Parent folder

›

Subfolder

›

Book

Priority  Book > Subfolder > Parent

6

E-ink optimization

These features make reading comfortable on E-ink (electronic paper) devices.

• Full refresh (clear ghosting): On BOOX/Onyx devices, a GC16 hard flash wipes out ghosting completely (a soft flash on non-Onyx devices). In "Settings → Display & appearance → E-ink Refresh Mode" you can turn it ON or OFF and choose how often the screen is redrawn: auto / every page / every 3 pages / every 5 pages.
• Contrast adjustment & dithering: Sharpen faint text and convert images to E-ink-friendly black and white.
• How pages are drawn: Choose high quality or speed.
• Sleep (screen off): Tap the moon icon at the top left of the reader to turn off the screen (lock the device). Useful on E-ink devices where the power button is hard to press. If you do not want the icon, it can be hidden in Settings → Reading → "Show the sleep (screen off) button".

7

Annotations, bookmarks & notes

There are 4 annotation tools: Navigate / Pen (handwriting) / Eraser / Lasso (range selection).

Navigate

Pen

Eraser

Lasso

Colored bookmarks

• Colored bookmarks: Tap the bookmark zone → choose from 5 colors: red, blue, green, yellow, and purple (in a spread, the left/right page is detected).
• Text notes: Leave a note at a position on the page, then edit or delete it.
• Handwritten annotations (pen): Draw freehand. Adjust the pen color (5 colors) and thickness from the side toolbar.
• Eraser & lasso: Erase your drawings, or select a range to move or delete it (size is adjustable).
• Annotation list (within a book): List all of that book's bookmarks, notes, and handwriting, and jump to them.
• All-annotations view (across books): From the annotation icon at the top of the library, view annotations from all your books across tabs (All / Bookmarks / Notes / Handwriting / History), with count badges. Links broken by moving folders, for example, can be restored with "Relink."
• Export / import: Export and import all annotations, history, and covers as JSON (for moving to a new device; in "Settings → Data backup").

8

Folder lock (PIN & fingerprint)

Books you would rather not have other people see can be hidden a whole folder at a time (added in 1.2.7).

What it does

• Lock a folder in your library with a 4- to 6-digit PIN. One PIN covers the whole app.
• You can also unlock with your fingerprint or face (the PIN is the master, so you always set one first).
• Books inside a locked folder never appear in widgets, in My Notes (the all-annotations view), or in your reading history.
• While you are reading a book from a locked folder, its thumbnail in the app switcher is left blank.

Locking a folder

Long-press the folder in the library and choose "Lock folder." The first time, you set your PIN here. To take the lock off, long-press it again and choose "Remove lock."

How a locked folder looks

You can choose this per folder.

• Show a lock icon — it is clear at a glance that the folder is locked.
• Disguise as a plain folder — it sits on the shelf as a folder with no cover, so nobody notices the lock at all.

When the lock re-engages

Set this in "Settings → Folder lock."

• After leaving the app — immediately / after 1 minute / after 5 minutes / after 15 minutes
• Relock immediately when the screen turns off — turn this on and it relocks without waiting.

While unlocked (an open padlock), your other locked folders open without the PIN too.

If you forget your PIN

"Settings → Folder lock → Forgot PIN (reset)" removes the lock from every folder. No books and no notes are deleted. The hidden books simply become visible again.

9

Cloud sync (Dropbox & home server)

Carry your reading state across multiple devices (for example, your phone and an E-ink device).

Phone

⇄

Dropbox / NAS

⇄

E-ink device

Reading position = furthest read winsAnnotations & history = mergedLayout = newer wins

How to connect

Go to "Settings → Cloud & sync → Connect Dropbox." For a NAS or Nextcloud at home, use "Connect home server / NAS" (WebDAV) — enter the server URL, user name and password (an "app password" issued by your server is recommended; there is also an option to allow self-signed certificates for home NAS setups). Once connected, the reading position and annotation switches below become available (they are grayed out before you connect).

What gets synced

• Books are identified by file content, so they are treated as the same book even if the storage location differs from device to device.
• Import from cloud: Pick a file on Dropbox or WebDAV, specify the destination library folder, and download it. You can also register a cloud folder itself as a bookshelf.
• Streaming: Comics (CBZ) start from the page you open instead of downloading the whole file (see "How cloud books open" below). Everything else — PDF, RAR and so on — is downloaded to the device first. Interrupted downloads resume where they left off.
• You can review your accounts in a list and disconnect them too (credentials are stored encrypted).

How cloud books open

Choose this in "Settings → Cloud & sync → Cloud open mode" (it applies to comics, i.e. CBZ files).

Since 1.2.7, comics on a home server / NAS can be streamed too. If the connection drops while you are reading, the app offers to switch to downloading.

10

Home screen widget

Place one on your home screen to reach your books without opening the app (4 types).

Continue reading

Return to your most recent book with one tap.

Reading history

A list of recently read books.

Bookmarks

Jump to the relevant page from your bookmark list.

Combined widget

A combined display of all of the above.

You can adjust the widget's appearance in "Settings → Widgets" or on the setup screen when you place it: background transparency ON/OFF, opacity (0–100%), and text size (70–180%). The design stays easy to read on E-ink, too.

11

Settings

Open it from the gear icon at the top right of the library. The settings home lists 8 entries, and each row shows its current value (where your bookshelf is, how often the screen refreshes, and so on) so you can check without going in.

At the very top, "Favorites" holds up to three settings of your choosing. Tap one and you can pick a value right there, without going into the screen behind it. It starts with cover size, refresh interval and app theme. "Edit" at the right end swaps them for any of the candidates (cover size, refresh interval, app theme, reader background, how pages are drawn, bookshelf layout, E-ink refresh, swipe to turn, animation, resume last book, show filenames, sleep button). Checking a fourth one says "Up to 3 favorites". Long-press a favorite to open the screen it lives on.

Items that need a longer explanation have a "?" next to their heading ("What is this?"). The explanation only appears when you tap it, so the list stays easy to read the rest of the time.