PocketBook InkPad 4 · Customization
Remap the page-turn buttons on the PocketBook InkPad 4
Assign a short press and a long press of each InkPad 4 bottom button to the actions you want — page turns, bookmarks, dictionary, screen refresh and more.
Two bottom buttons with a short and long press each give you four actions to assign. The short presses are usually best left as page turns (or reversed), while on a large-screen reader the long presses are worth spending on a manual screen refresh and a rotate toggle for wide PDFs.
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Open the key-mapping settings
From the home screen, open Settings, then "Personalize", then "Key mapping" (on some firmware it is under "Reading settings"). You will see a list of the physical controls the InkPad 4 has.
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Understand short press and long press
Each of the two bottom page-turn buttons has two actions you can set separately — a short press and a long press (holding the button for about a second). That gives you four assignable actions from two buttons.
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Set the short presses for turning pages
Most people leave short press on the right button as "Next page" and the left as "Previous page". Swap them if you prefer, or if you usually hold the device in one particular hand.
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Assign the long presses to something useful
Long press is where the value is. Options usually include "Add bookmark", "Dictionary", "Screen refresh" (a full flash to clear ghosting), "Brightness", "Rotate" and "Table of contents". On a large screen used for PDFs, "Rotate" and "Screen refresh" are popular long-press choices.
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Note how the buttons behave in landscape
When you rotate the InkPad 4, PocketBook keeps "next" and "previous" doing the sensible thing for the new orientation. If it feels backwards after a rotate, it is usually the PDF's own page order, not the button mapping.
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Save and test
The changes take effect immediately. Open a book and try each press and hold to confirm they do what you expect. KOReader keeps its own separate mapping if you run it.