window.onload = async function () {
//DsPdfViewer.LicenseKey = "***key***";
const viewer = new DsPdfViewer("#viewer", {restoreViewStateOnLoad: false, language: "ja"});
viewer.addDefaultPanels();
viewer.onAfterOpen.register(async function () {
const prefs = await viewer.viewerPreferences;
let sBrief = "";
let sDetails = "";
for (const k in prefs) {
const val = prefs[k];
if (!val)
continue;
sBrief += `${k}; `;
if (k === "openAction" && val.dest) {
const pageRef = val.dest[0];
const targetPageIndex = await viewer.resolvePageIndex(pageRef);
sDetails += `${k}=${JSON.stringify(val)}, 開くページのインデックス:${targetPageIndex}; `;
} else {
sDetails += `${k}=${(typeof val === "object" ? JSON.stringify(val) : val)}; `;
}
}
if (!sBrief)
viewer.showMessage("このPDFには開き方設定がありません。", "", "info");
else
viewer.showMessage("このPDFには次の開き方設定があります：" + sBrief, sDetails, "info");
});
viewer.open("/diodocs/pdfviewer/demos/product-bundles/assets/pdf/show-viewer-preferences.pdf");
}
<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>開き方設定の取得</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="./src/styles.css">
<script src="/diodocs/pdfviewer/demos/product-bundles/build/dspdfviewer.js"></script>
<script src="/diodocs/pdfviewer/demos/product-bundles/build/wasmSupportApi.js"></script>
<script src="/diodocs/pdfviewer/demos/resource/js/init.js"></script>
<script src="./src/app.js"></script>
</head>
<body>
<div id="viewer"></div>
</body>
</html>
#viewer {
height: 100%;
}
