[Bug] PDF++ breaks mouse scrolling in ipadOS

[fritzcloud]

Steps to reproduce

1. Open Obsidian on iOS/iPadOS
2. enable PDF++
3. Try to scroll a file or the sidebar using a mouse (I tried my magic keyboard)

Expected behavior

Scrolling the sidebar and the file content should work

Actual behavior

Scrolling with anything but my finger doesn‘t work, I can only use the scroll bar, but can‘t 2 finger scroll like normal

Screen recordings or screenshots (sandbox vault)

https://github.com/user-attachments/assets/bb84f1e1-b301-44b2-9d34-6e2fb37e6d1a

Here you can clearly see that once the plugin is enabled, I can‘t scroll anymore. Another person with this bug: https://forum.obsidian.md/t/ios-scrolling-problem-with-external-mouse-both-mobile-app-and-publish/59262/77

Obsidian debug info

SYSTEM INFO: Operating system: ios 18.0 (Apple iPad8,1) Obsidian version: 1.6.7 (149) API version: v1.6.7 Login status: not logged in Live preview: on Base theme: adapt to system Community theme: none Snippets enabled: 0 Restricted mode: off Plugins installed: 1 Plugins enabled: 1 1: PDF++ v0.40.9

RECOMMENDATIONS: Community plugins: for bugs, please first try updating all your plugins to latest. If still not fixed, please try to make the issue happen in the Sandbox Vault or disable community plugins.

PDF++ debug info

{
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                "name": "Title & page",
                "template": "{{file.basename}}, p.{{pageLabel}}"
            },
            {
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            {
                "name": "Text",
                "template": "{{text}}"
            },
            {
                "name": "Emoji",
                "template": "📖"
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                "template": "> ({{linkWithDisplay}})\n> {{selection}}\n"
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            {
                "name": "Embed",
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            {
                "name": "Callout",
                "template": "> [!{{calloutType}}|{{color}}] {{linkWithDisplay}}\n> {{text}}\n"
            },
            {
                "name": "Quote in callout",
                "template": "> [!{{calloutType}}|{{color}}] {{linkWithDisplay}}\n> > {{text}}\n> \n> "
            }
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        "useAnotherCopyTemplateWhenNoSelection": false,
        "copyTemplateWhenNoSelection": "{{linkToPageWithDisplay}}",
        "trimSelectionEmbed": false,
        "embedMargin": 50,
        "noSidebarInEmbed": true,
        "noSpreadModeInEmbed": true,
        "embedUnscrollable": false,
        "singleTabForSinglePDF": true,
        "highlightExistingTab": false,
        "existingTabHighlightOpacity": 0.5,
        "existingTabHighlightDuration": 0.75,
        "paneTypeForFirstPDFLeaf": "left",
        "openLinkNextToExistingPDFTab": true,
        "openPDFWithDefaultApp": false,
        "openPDFWithDefaultAppAndObsidian": true,
        "focusObsidianAfterOpenPDFWithDefaultApp": true,
        "syncWithDefaultApp": false,
        "dontActivateAfterOpenPDF": true,
        "dontActivateAfterOpenMD": true,
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        "persistentTextHighlightsInEmbed": true,
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        "highlightBacklinks": true,
        "selectionBacklinkVisualizeStyle": "highlight",
        "dblclickEmbedToOpenLink": true,
        "highlightBacklinksPane": true,
        "highlightOnHoverBacklinkPane": true,
        "backlinkHoverColor": "",
        "colors": {
            "Yellow": "#ffd000",
            "Red": "#ea5252",
            "Note": "#086ddd",
            "Important": "#bb61e5"
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        "syncColorPaletteItem": true,
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        "colorPaletteInToolbar": true,
        "noColorButtonInColorPalette": true,
        "colorPaletteInEmbedToolbar": false,
        "quietColorPaletteTooltip": false,
        "showStatusInToolbar": true,
        "highlightColorSpecifiedOnly": false,
        "doubleClickHighlightToOpenBacklink": true,
        "hoverHighlightAction": "preview",
        "paneTypeForFirstMDLeaf": "right",
        "singleMDLeafInSidebar": true,
        "alwaysUseSidebar": true,
        "ignoreExistingMarkdownTabIn": [],
        "defaultColorPaletteActionIndex": 4,
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        "author": "",
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        "pdfLinkColor": "#04a802",
        "pdfLinkBorder": false,
        "replaceContextMenu": true,
        "showContextMenuOnMouseUpIf": "Mod",
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                "id": "action",
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                "id": "selection",
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                "id": "speech",
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        "mobileCopyAction": "pdf-plus",
        "showContextMenuOnTablet": false,
        "executeBuiltinCommandForOutline": true,
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        "outlineLinkCopyFormat": "{{linkWithDisplay}}",
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        "thumbnailLinkCopyFormat": "{{linkWithDisplay}}",
        "recordHistoryOnThumbnailClick": true,
        "popoverPreviewOnThumbnailHover": true,
        "annotationPopupDrag": true,
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        "calloutType": "PDF",
        "calloutIcon": "highlighter",
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        "highlightBacklinksInHoverPopover": false,
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        "clickPDFInternalLinkWithModifierKey": true,
        "clickOutlineItemWithModifierKey": true,
        "clickThumbnailWithModifierKey": true,
        "focusEditorAfterAutoPaste": true,
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        "autoFocusTarget": "last-active-and-open-then-last-paste",
        "autoPasteTarget": "last-active-and-open-then-last-paste",
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        "pageLabelUpdateWhenInsertPage": "keep",
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        "copyOutlineAsListFormat": "{{linkWithDisplay}}",
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        "copyOutlineAsHeadingsDisplayTextFormat": "p.{{pageLabel}}",
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        "newFileNameFormat": "",
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        "newPDFLocation": "current",
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        "rectEmbedStaticImage": false,
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        "rectImageExtension": "webp",
        "zoomToFitRect": false,
        "rectEmbedResolution": 100,
        "includeColorWhenCopyingRectLink": true,
        "backlinkIconSize": 50,
        "showBacklinkIconForSelection": false,
        "showBacklinkIconForAnnotation": false,
        "showBacklinkIconForOffset": true,
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        "showBoundingRectForBacklinkedAnnot": false,
        "hideReplyAnnotation": false,
        "searchLinkHighlightAll": "true",
        "searchLinkCaseSensitive": "true",
        "searchLinkMatchDiacritics": "default",
        "searchLinkEntireWord": "false",
        "dontFitWidthWhenOpenPDFLink": true,
        "preserveCurrentLeftOffsetWhenOpenPDFLink": false,
        "defaultZoomValue": "page-width",
        "scrollModeOnLoad": 0,
        "spreadModeOnLoad": 0,
        "hoverableDropdownMenuInToolbar": true,
        "zoomLevelInputBoxInToolbar": true,
        "popoverPreviewOnExternalLinkHover": true,
        "actionOnCitationHover": "pdf-plus-bib-popover",
        "anystylePath": "",
        "enableBibInEmbed": false,
        "enableBibInHoverPopover": false,
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        "copyAsSingleLine": true,
        "removeWhitespaceBetweenCJChars": true,
        "vim": false,
        "vimrcPath": "",
        "vimVisualMotion": true,
        "vimScrollSize": 40,
        "vimLargerScrollSizeWhenZoomIn": true,
        "vimContinuousScrollSpeed": 1.2,
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        "vimHintChars": "hjklasdfgyuiopqwertnmzxcvb",
        "vimHintArgs": "all",
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    "styleSettings": null,
    "styleSheet": ".pdf-plus-backlink-highlight-layer .pdf-plus-backlink:not(.hovered-highlight)[data-highlight-color=\"yellow\"],\n.pdf-embed[data-highlight-color=\"yellow\"] .textLayer .mod-focused {\n    --pdf-plus-color: #ffd000;\n    --pdf-plus-backlink-icon-color: #ffd000;\n    --pdf-plus-rect-color: #ffd000;\n}\n.pdf-plus-backlink-highlight-layer .pdf-plus-backlink:not(.hovered-highlight)[data-highlight-color=\"red\"],\n.pdf-embed[data-highlight-color=\"red\"] .textLayer .mod-focused {\n    --pdf-plus-color: #ea5252;\n    --pdf-plus-backlink-icon-color: #ea5252;\n    --pdf-plus-rect-color: #ea5252;\n}\n.pdf-plus-backlink-highlight-layer .pdf-plus-backlink:not(.hovered-highlight)[data-highlight-color=\"note\"],\n.pdf-embed[data-highlight-color=\"note\"] .textLayer .mod-focused {\n    --pdf-plus-color: #086ddd;\n    --pdf-plus-backlink-icon-color: #086ddd;\n    --pdf-plus-rect-color: #086ddd;\n}\n.pdf-plus-backlink-highlight-layer .pdf-plus-backlink:not(.hovered-highlight)[data-highlight-color=\"important\"],\n.pdf-embed[data-highlight-color=\"important\"] .textLayer .mod-focused {\n    --pdf-plus-color: #bb61e5;\n    --pdf-plus-backlink-icon-color: #bb61e5;\n    --pdf-plus-rect-color: #bb61e5;\n}\n.pdf-plus-backlink-highlight-layer .pdf-plus-backlink:not(.hovered-highlight) {\n    --pdf-plus-color: rgb(var(--text-highlight-bg-rgb));\n    --pdf-plus-backlink-icon-color: rgb(var(--text-highlight-bg-rgb));\n    --pdf-plus-rect-color: rgb(var(--text-highlight-bg-rgb));\n}\n.pdf-plus-backlink-highlight-layer .pdf-plus-backlink.hovered-highlight {\n\t--pdf-plus-color: green;\n\t--pdf-plus-backlink-icon-color: green;\n   --pdf-plus-rect-color: green;\n}\n.pdf-plus-color-palette-item[data-highlight-color=\"yellow\"] > .pdf-plus-color-palette-item-inner {\n    background-color: #ffd000;\n}\n.pdf-plus-color-palette-item[data-highlight-color=\"red\"] > .pdf-plus-color-palette-item-inner {\n    background-color: #ea5252;\n}\n.pdf-plus-color-palette-item[data-highlight-color=\"note\"] > .pdf-plus-color-palette-item-inner {\n    background-color: #086ddd;\n}\n.pdf-plus-color-palette-item[data-highlight-color=\"important\"] > .pdf-plus-color-palette-item-inner {\n    background-color: #bb61e5;\n}\n.pdf-plus-color-palette-item:not([data-highlight-color]) > .pdf-plus-color-palette-item-inner {\n    background-color: transparent;\n}\n.workspace-leaf.pdf-plus-link-opened.is-highlighted::before {\n\topacity: 0.5;\n}\nbody {\n    --pdf-plus-yellow-rgb: 255, 208, 0\n}\nbody {\n    --pdf-plus-red-rgb: 234, 82, 82\n}\nbody {\n    --pdf-plus-note-rgb: 8, 109, 221\n}\nbody {\n    --pdf-plus-important-rgb: 187, 97, 229\n}\nbody {\n    --pdf-plus-default-color-rgb: var(--text-highlight-bg-rgb)\n}\n.callout[data-callout=\"pdf\"][data-callout-metadata=\"yellow\"] {\n\t--callout-color: var(--pdf-plus-yellow-rgb);\n   background-color: rgba(var(--callout-color), var(--pdf-plus-highlight-opacity, 0.2))\n}\n.callout[data-callout=\"pdf\"][data-callout-metadata=\"red\"] {\n\t--callout-color: var(--pdf-plus-red-rgb);\n   background-color: rgba(var(--callout-color), var(--pdf-plus-highlight-opacity, 0.2))\n}\n.callout[data-callout=\"pdf\"][data-callout-metadata=\"note\"] {\n\t--callout-color: var(--pdf-plus-note-rgb);\n   background-color: rgba(var(--callout-color), var(--pdf-plus-highlight-opacity, 0.2))\n}\n.callout[data-callout=\"pdf\"][data-callout-metadata=\"important\"] {\n\t--callout-color: var(--pdf-plus-important-rgb);\n   background-color: rgba(var(--callout-color), var(--pdf-plus-highlight-opacity, 0.2))\n}\n.callout[data-callout=\"pdf\"] {\n\t--callout-color: var(--pdf-plus-default-color-rgb);\n   background-color: rgba(var(--callout-color), var(--pdf-plus-highlight-opacity, 0.2))\n}\n.callout[data-callout=\"pdf\"] {\n   --callout-icon: lucide-highlighter;\n}"
}

Error messages

No response

[lyonsquark]

I'm seeing the same issue with Obsidian 1.7.1 on an iPad Pro running iPadOS 18 Public Beta.

If PDF++ is enabled, my mouse scroll wheel is ignored. With PDF++ disabled, I am able to scroll notes and menus with the mouse scroll wheel.

[RyotaUshio]

Thank you, I will look into it.

Just to clarify, there are two separate problems:

• Regardless of whether PDF++ is enabled or not, PDF files cannot be scrolled. This is a bug in Obsidian itself, and it has been reported on the forum. Also there is an separate GitHub issue (#269) for it.I will not address this bug in this issue.
• Besides that, if PDF++ is enabled, apparently any mouse scroll is ignored in anywhere in Obsidian. As a result, any files including markdown files and even the setting modal cannot be scrolled. This is the problem we are discussing in this issue.

[RyotaUshio]

Will be fixed in the next release!