废话不多说直接上代码，在手机上完美实现了手势控制而且不会去扩大上面的内容
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<html dir="ltr" mozdisallowselectionprint>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<meta name="google" content="notranslate">
<title>PDF.js viewer</title>
<link rel="stylesheet" href="viewer.min.css">
<!-- This snippet is used in production (included from viewer.html) -->
<link rel="resource" type="application/l10n" href="locale/locale.properties">
<script src="../build/pdf.min.js"></script>
<script src="viewer.js"></script>
</head>
<body tabindex="1">
<div id="outerContainer">
<div id="sidebarContainer">
<div id="toolbarSidebar">
<div id="toolbarSidebarLeft">
<div class="splitToolbarButton toggled">
<button id="viewThumbnail" class="toolbarButton toggled" title="Show Thumbnails"
tabindex="2" data-l10n-id="thumbs">
<span data-l10n-id="thumbs_label">Thumbnails</span>
</button>
<button id="viewOutline" class="toolbarButton"
title="Show Document Outline (double-click to expand/collapse all items)" tabindex="3"
data-l10n-id="document_outline">
<span data-l10n-id="document_outline_label">Document Outline</span>
</button>
<button id="viewAttachments" class="toolbarButton" title="Show Attachments" tabindex="4"
data-l10n-id="attachments">
<span data-l10n-id="attachments_label">Attachments</span>
</button>
<button id="viewLayers" class="toolbarButton"
title="Show Layers (double-click to reset all layers to the default state)" tabindex="5"
data-l10n-id="layers">
<span data-l10n-id="layers_label">Layers</span>
</button>
</div>
</div>
<div id="toolbarSidebarRight">
<div id="outlineOptionsContainer" class="hidden">
<div class="verticalToolbarSeparator"></div>
<button id="currentOutlineItem" class="toolbarButton" disabled="disabled"
title="Find Current Outline Item" tabindex="6" data-l10n-id="current_outline_item">
<span data-l10n-id="current_outline_item_label">Current Outline Item</span>
</button>
</div>
</div>
</div>
<div id="sidebarContent">
<div id="thumbnailView">
</div>
<div id="outlineView" class="hidden">
</div>
<div id="attachmentsView" class="hidden">
</div>
<div id="layersView" class="hidden">
</div>
</div>
<div id="sidebarResizer"></div>
</div> <!-- sidebarContainer -->
<div id="mainContainer">
<div class="findbar hidden doorHanger" id="findbar">
<div id="findbarInputContainer">
<input id="findInput" class="toolbarField" title="Find" placeholder="Find in document…"
tabindex="91" data-l10n-id="find_input">
<div class="splitToolbarButton">
<button id="findPrevious" class="toolbarButton findPrevious"
title="Find the previous occurrence of the phrase" tabindex="92"
data-l10n-id="find_previous">
<span data-l10n-id="find_previous_label">Previous</span>
</button>
<div class="splitToolbarButtonSeparator"></div>
<button id="findNext" class="toolbarButton findNext"
title="Find the next occurrence of the phrase" tabindex="93" data-l10n-id="find_next">
<span data-l10n-id="find_next_label">Next</span>
</button>
</div>
</div>
<div id="findbarOptionsOneContainer">
<input type="checkbox" id="findHighlightAll" class="toolbarField" tabindex="94">
<label for="findHighlightAll" class="toolbarLabel" data-l10n-id="find_highlight">Highlight
all</label>
<input type="checkbox" id="findMatchCase" class="toolbarField" tabindex="95">
<label for="findMatchCase" class="toolbarLabel" data-l10n-id="find_match_case_label">Match
case</label>
</div>
<div id="findbarOptionsTwoContainer">
<input type="checkbox" id="findEntireWord" class="toolbarField" tabindex="96">
<label for="findEntireWord" class="toolbarLabel" data-l10n-id="find_entire_word_label">Whole
words</label>
<span id="findResultsCount" class="toolbarLabel hidden"></span>
</div>
<div id="findbarMessageContainer">
<span id="findMsg" class="toolbarLabel"></span>
</div>
</div> <!-- findbar -->
<div id="secondaryToolbar" class="secondaryToolbar hidden doorHangerRight">
<div id="secondaryToolbarButtonContainer">
<button id="secondaryPresentationMode"
class="secondaryToolbarButton presentationMode visibleLargeView"
title="Switch to Presentation Mode" tabindex="51" data-l10n-id="presentation_mode">
<span data-l10n-id="presentation_mode_label">Presentation Mode</span>
</button>
<button id="secondaryOpenFile" class="secondaryToolbarButton openFile visibleLargeView"
title="Open File" tabindex="52" data-l10n-id="open_file">
<span data-l10n-id="open_file_label">Open</span>
</button>
<button id="secondaryPrint" class="secondaryToolbarButton print visibleMediumView" title="Print"
tabindex="53" data-l10n-id="print">
<span data-l10n-id="print_label">Print</span>
</button>
<button id="secondaryDownload" class="secondaryToolbarButton download visibleMediumView"
title="Download" tabindex="54" data-l10n-id="download">
<span data-l10n-id="download_label">Download</span>
</button>
<a href="#" id="secondaryViewBookmark" class="secondaryToolbarButton bookmark visibleSmallView"
title="Current view (copy or open in new window)" tabindex="55" data-l10n-id="bookmark">
<span data-l10n-id="bookmark_label">Current View</span>
</a>
<div class="horizontalToolbarSeparator visibleLargeView"></div>
<button id="firstPage" class="secondaryToolbarButton firstPage" title="Go to First Page"
tabindex="56" data-l10n-id="first_page">
<span data-l10n-id="first_page_label">Go to First Page</span>
</button>
<button id="lastPage" class="secondaryToolbarButton lastPage" title="Go to Last Page"
tabindex="57" data-l10n-id="last_page">
<span data-l10n-id="last_page_label">Go to Last Page</span>
</button>
<div class="horizontalToolbarSeparator"></div>
<button id="pageRotateCw" class="secondaryToolbarButton rotateCw" title="Rotate Clockwise"
tabindex="58" data-l10n-id="page_rotate_cw">
<span data-l10n-id="page_rotate_cw_label">Rotate Clockwise</span>
</button>
<button id="pageRotateCcw" class="secondaryToolbarButton rotateCcw"
title="Rotate Counterclockwise" tabindex="59" data-l10n-id="page_rotate_ccw">
<span data-l10n-id="page_rotate_ccw_label">Rotate Counterclockwise</span>
</button>
<div class="horizontalToolbarSeparator"></div>
<button id="cursorSelectTool" class="secondaryToolbarButton selectTool toggled"
title="Enable Text Selection Tool" tabindex="60" data-l10n-id="cursor_text_select_tool">
<span data-l10n-id="cursor_text_select_tool_label">Text Selection Tool</span>
</button>
<button id="cursorHandTool" class="secondaryToolbarButton handTool" title="Enable Hand Tool"
tabindex="61" data-l10n-id="cursor_hand_tool">
<span data-l10n-id="cursor_hand_tool_label">Hand Tool</span>
</button>
<div class="horizontalToolbarSeparator"></div>
<button id="scrollVertical"
class="secondaryToolbarButton scrollModeButtons scrollVertical toggled"
title="Use Vertical Scrolling" tabindex="62" data-l10n-id="scroll_vertical">
<span data-l10n-id="scroll_vertical_label">Vertical Scrolling</span>
</button>
<button id="scrollHorizontal" class="secondaryToolbarButton scrollModeButtons scrollHorizontal"
title="Use Horizontal Scrolling" tabindex="63" data-l10n-id="scroll_horizontal">
<span data-l10n-id="scroll_horizontal_label">Horizontal Scrolling</span>
</button>
<button id="scrollWrapped" class="secondaryToolbarButton scrollModeButtons scrollWrapped"
title="Use Wrapped Scrolling" tabindex="64" data-l10n-id="scroll_wrapped">
<span data-l10n-id="scroll_wrapped_label">Wrapped Scrolling</span>
</button>
<div class="horizontalToolbarSeparator scrollModeButtons"></div>
<button id="spreadNone" class="secondaryToolbarButton spreadModeButtons spreadNone toggled"
title="Do not join page spreads" tabindex="65" data-l10n-id="spread_none">
<span data-l10n-id="spread_none_label">No Spreads</span>
</button>
<button id="spreadOdd" class="secondaryToolbarButton spreadModeButtons spreadOdd"
title="Join page spreads starting with odd-numbered pages" tabindex="66"
data-l10n-id="spread_odd">
<span data-l10n-id="spread_odd_label">Odd Spreads</span>
</button>
<button id="spreadEven" class="secondaryToolbarButton spreadModeButtons spreadEven"
title="Join page spreads starting with even-numbered pages" tabindex="67"
data-l10n-id="spread_even">
<span data-l10n-id="spread_even_label">Even Spreads</span>
</button>
<div class="horizontalToolbarSeparator spreadModeButtons"></div>
<button id="documentProperties" class="secondaryToolbarButton documentProperties"
title="Document Properties…" tabindex="68" data-l10n-id="document_properties">
<span data-l10n-id="document_properties_label">Document Properties…</span>
</button>
</div>
</div> <!-- secondaryToolbar -->
<div class="toolbar">
<div id="toolbarContainer">
<div id="toolbarViewer">
<div id="toolbarViewerLeft">
<button id="sidebarToggle" class="toolbarButton" title="Toggle Sidebar" tabindex="11"
data-l10n-id="toggle_sidebar" aria-expanded="false"
aria-controls="sidebarContainer">
<span data-l10n-id="toggle_sidebar_label">Toggle Sidebar</span>
</button>
<div class="toolbarButtonSpacer"></div>
<button id="viewFind" class="toolbarButton" title="Find in Document" tabindex="12"
data-l10n-id="findbar" aria-expanded="false" aria-controls="findbar">
<span data-l10n-id="findbar_label">Find</span>
</button>
<div class="splitToolbarButton hiddenSmallView">
<button class="toolbarButton pageUp" title="Previous Page" id="previous"
tabindex="13" data-l10n-id="previous">
<span data-l10n-id="previous_label">Previous</span>
</button>
<div class="splitToolbarButtonSeparator"></div>
<button class="toolbarButton pageDown" title="Next Page" id="next" tabindex="14"
data-l10n-id="next">
<span data-l10n-id="next_label">Next</span>
</button>
</div>
<input type="number" id="pageNumber" class="toolbarField pageNumber" title="Page"
value="1" size="4" min="1" tabindex="15" data-l10n-id="page" autocomplete="off">
<span id="numPages" class="toolbarLabel"></span>
</div>
<div id="toolbarViewerRight">
<button id="presentationMode" class="toolbarButton presentationMode hiddenLargeView"
title="Switch to Presentation Mode" tabindex="31" data-l10n-id="presentation_mode">
<span data-l10n-id="presentation_mode_label">Presentation Mode</span>
</button>
<button id="openFile" class="toolbarButton openFile hiddenLargeView" title="Open File"
tabindex="32" data-l10n-id="open_file">
<span data-l10n-id="open_file_label">Open</span>
</button>
<button id="print" class="toolbarButton print hiddenMediumView" title="Print"
tabindex="33" data-l10n-id="print">
<span data-l10n-id="print_label">Print</span>
</button>
<button id="download" class="toolbarButton download hiddenMediumView" title="Download"
tabindex="34" data-l10n-id="download">
<span data-l10n-id="download_label">Download</span>
</button>
<a href="#" id="viewBookmark" class="toolbarButton bookmark hiddenSmallView"
title="Current view (copy or open in new window)" tabindex="35"
data-l10n-id="bookmark">
<span data-l10n-id="bookmark_label">Current View</span>
</a>
<div class="verticalToolbarSeparator hiddenSmallView"></div>
<button id="secondaryToolbarToggle" class="toolbarButton" title="Tools" tabindex="36"
data-l10n-id="tools" aria-expanded="false" aria-controls="secondaryToolbar">
<span data-l10n-id="tools_label">Tools</span>
</button>
</div>
<div id="toolbarViewerMiddle">
<div class="splitToolbarButton">
<button id="zoomOut" class="toolbarButton zoomOut" title="Zoom Out" tabindex="21"
data-l10n-id="zoom_out">
<span data-l10n-id="zoom_out_label">Zoom Out</span>
</button>
<div class="splitToolbarButtonSeparator"></div>
<button id="zoomIn" class="toolbarButton zoomIn" title="Zoom In" tabindex="22"
data-l10n-id="zoom_in">
<span data-l10n-id="zoom_in_label">Zoom In</span>
</button>
</div>
<span id="scaleSelectContainer" class="dropdownToolbarButton">
<select id="scaleSelect" title="Zoom" tabindex="23" data-l10n-id="zoom">
<option id="pageAutoOption" title="" value="auto" selected="selected"
data-l10n-id="page_scale_auto">Automatic Zoom</option>
<option id="pageActualOption" title="" value="page-actual"
data-l10n-id="page_scale_actual">Actual Size</option>
<option id="pageFitOption" title="" value="page-fit"
data-l10n-id="page_scale_fit">Page Fit</option>
<option id="pageWidthOption" title="" value="page-width"
data-l10n-id="page_scale_width">Page Width</option>
<option id="customScaleOption" title="" value="custom" disabled="disabled"
hidden="true"></option>
<option title="" value="0.5" data-l10n-id="page_scale_percent"
data-l10n-args='{ "scale": 50 }'>50%</option>
<option title="" value="0.75" data-l10n-id="page_scale_percent"
data-l10n-args='{ "scale": 75 }'>75%</option>
<option title="" value="1" data-l10n-id="page_scale_percent"
data-l10n-args='{ "scale": 100 }'>100%</option>
<option title="" value="1.25" data-l10n-id="page_scale_percent"
data-l10n-args='{ "scale": 125 }'>125%</option>
<option title="" value="1.5" data-l10n-id="page_scale_percent"
data-l10n-args='{ "scale": 150 }'>150%</option>
<option title="" value="2" data-l10n-id="page_scale_percent"
data-l10n-args='{ "scale": 200 }'>200%</option>
<option title="" value="3" data-l10n-id="page_scale_percent"
data-l10n-args='{ "scale": 300 }'>300%</option>
<option title="" value="4" data-l10n-id="page_scale_percent"
data-l10n-args='{ "scale": 400 }'>400%</option>
</select>
</span>
</div>
</div>
<div id="loadingBar">
<div class="progress">
<div class="glimmer">
</div>
</div>
</div>
</div>
</div>
<div id="viewerContainer" tabindex="0">
<div id="viewer" class="pdfViewer"></div>
</div>
<div id="errorWrapper" hidden='true'>
<div id="errorMessageLeft">
<span id="errorMessage"></span>
<button id="errorShowMore" data-l10n-id="error_more_info">
More Information
</button>
<button id="errorShowLess" data-l10n-id="error_less_info" hidden='true'>
Less Information
</button>
</div>
<div id="errorMessageRight">
<button id="errorClose" data-l10n-id="error_close">
Close
</button>
</div>
<div class="clearBoth"></div>
<textarea id="errorMoreInfo" hidden='true' readonly="readonly"></textarea>
</div>
</div> <!-- mainContainer -->
<div id="overlayContainer" class="hidden">
<div id="passwordOverlay" class="container hidden">
<div class="dialog">
<div class="row">
<p id="passwordText" data-l10n-id="password_label">Enter the password to open this PDF file:
</p>
</div>
<div class="row">
<input type="password" id="password" class="toolbarField">
</div>
<div class="buttonRow">
<button id="passwordCancel" class="overlayButton"><span
data-l10n-id="password_cancel">Cancel</span></button>
<button id="passwordSubmit" class="overlayButton"><span
data-l10n-id="password_ok">OK</span></button>
</div>
</div>
</div>
<div id="documentPropertiesOverlay" class="container hidden">
<div class="dialog">
<div class="row">
<span data-l10n-id="document_properties_file_name">File name:</span>
<p id="fileNameField">-</p>
</div>
<div class="row">
<span data-l10n-id="document_properties_file_size">File size:</span>
<p id="fileSizeField">-</p>
</div>
<div class="separator"></div>
<div class="row">
<span data-l10n-id="document_properties_title">Title:</span>
<p id="titleField">-</p>
</div>
<div class="row">
<span data-l10n-id="document_properties_author">Author:</span>
<p id="authorField">-</p>
</div>
<div class="row">
<span data-l10n-id="document_properties_subject">Subject:</span>
<p id="subjectField">-</p>
</div>
<div class="row">
<span data-l10n-id="document_properties_keywords">Keywords:</span>
<p id="keywordsField">-</p>
</div>
<div class="row">
<span data-l10n-id="document_properties_creation_date">Creation Date:</span>
<p id="creationDateField">-</p>
</div>
<div class="row">
<span data-l10n-id="document_properties_modification_date">Modification Date:</span>
<p id="modificationDateField">-</p>
</div>
<div class="row">
<span data-l10n-id="document_properties_creator">Creator:</span>
<p id="creatorField">-</p>
</div>
<div class="separator"></div>
<div class="row">
<span data-l10n-id="document_properties_producer">PDF Producer:</span>
<p id="producerField">-</p>
</div>
<div class="row">
<span data-l10n-id="document_properties_version">PDF Version:</span>
<p id="versionField">-</p>
</div>
<div class="row">
<span data-l10n-id="document_properties_page_count">Page Count:</span>
<p id="pageCountField">-</p>
</div>
<div class="row">
<span data-l10n-id="document_properties_page_size">Page Size:</span>
<p id="pageSizeField">-</p>
</div>
<div class="separator"></div>
<div class="row">
<span data-l10n-id="document_properties_linearized">Fast Web View:</span>
<p id="linearizedField">-</p>
</div>
<div class="buttonRow">
<button id="documentPropertiesClose" class="overlayButton"><span
data-l10n-id="document_properties_close">Close</span></button>
</div>
</div>
</div>
<div id="printServiceOverlay" class="container hidden">
<div class="dialog">
<div class="row">
<span data-l10n-id="print_progress_message">Preparing document for printing…</span>
</div>
<div class="row">
<progress value="0" max="100"></progress>
<span data-l10n-id="print_progress_percent" data-l10n-args='{ "progress": 0 }'
class="relative-progress">0%</span>
</div>
<div class="buttonRow">
<button id="printCancel" class="overlayButton"><span
data-l10n-id="print_progress_close">Cancel</span></button>
</div>
</div>
</div>
</div> <!-- overlayContainer -->
</div> <!-- outerContainer -->
<div id="printContainer"></div>
</body>
<script>
let pinchZoomEnabled = false;
function enablePinchZoom(pdfViewer) {
let startX = 0,
startY = 0;
let initialPinchDistance = 0;
let pinchScale = 1;
const viewer = document.getElementById("viewer");
const container = document.getElementById("viewerContainer");
const reset = () => {
startX = startY = initialPinchDistance = 0;
pinchScale = 1;
};
// Prevent native iOS page zoom
//document.addEventListener("touchmove", (e) => { if (e.scale !== 1) { e.preventDefault(); } }, { passive: false });
document.addEventListener("touchstart", (e) => {
if (e.touches.length > 1) {
startX = (e.touches[0].pageX + e.touches[1].pageX) / 2;
startY = (e.touches[0].pageY + e.touches[1].pageY) / 2;
initialPinchDistance = Math.hypot(
e.touches[1].pageX - e.touches[0].pageX,
e.touches[1].pageY - e.touches[0].pageY
);
} else {
initialPinchDistance = 0;
}
});
document.addEventListener(
"touchmove",
(e) => {
if (initialPinchDistance <= 0 || e.touches.length < 2) {
return;
}
if (e.scale !== 1) {
e.preventDefault();
}
const pinchDistance = Math.hypot(
e.touches[1].pageX - e.touches[0].pageX,
e.touches[1].pageY - e.touches[0].pageY
);
const originX = startX + container.scrollLeft;
const originY = startY + container.scrollTop;
pinchScale = pinchDistance / initialPinchDistance;
viewer.style.transform = `scale(${pinchScale})`;
viewer.style.transformOrigin = `${originX}px ${originY}px`;
}, {
passive: false
}
);
document.addEventListener("touchend", (e) => {
if (initialPinchDistance <= 0) {
return;
}
viewer.style.transform = `none`;
viewer.style.transformOrigin = `unset`;
PDFViewerApplication.pdfViewer.currentScale *= pinchScale;
const rect = container.getBoundingClientRect();
const dx = startX - rect.left;
const dy = startY - rect.top;
container.scrollLeft += dx * (pinchScale - 1);
container.scrollTop += dy * (pinchScale - 1);
reset();
});
}
document.addEventListener("DOMContentLoaded", () => {
if (!pinchZoomEnabled) {
pinchZoomEnabled = true;
enablePinchZoom();
}
});
</script>
</html>
重点在body结束之后的脚本这里完美实现了手势控制，来源于pdfjs里面的issue 国外老哥贡献的这里做个记录
下面代码就是实现关键字高亮的，提高用户体验这里找到viewer.js 替换即可
setInitialView(view = _ui_utils.SidebarView.NONE) {
if (this.isInitialViewSet) {
return;
}
this.isInitialViewSet = true;
//获取链接
var urlPath=decodeURIComponent(window.location.href);
var index=urlPath.indexOf("&keyword");
//获取关键词
var keyword=urlPath.substr(index+9);
console.log('---------------',keyword)
//对查询输入框进行赋值
document.getElementById("findInput").value=keyword;
//点击高亮按钮实现高亮显示关键词
document.getElementById("findHighlightAll").click();
if (view === _ui_utils.SidebarView.NONE || view === _ui_utils.SidebarView.UNKNOWN) {
this._dispatchEvent();
return;
}
if (!this._switchView(view, true)) {
this._dispatchEvent();
}
}
url 传递keyword 即可实现高亮
最终效果如下：
image.png
