Stirling-PDF/src/main/resources/templates/misc/remove-annotations.html

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2023-12-23 19:47:21 +01:00
<!DOCTYPE html>
<html th:lang="${#locale.toString()}" th:lang-direction="#{language.direction}" xmlns:th="http://www.thymeleaf.org">
<th:block th:insert="~{fragments/common :: head(title=#{removeAnnotations.title})}"></th:block>
<body>
<div id="page-container">
<div id="content-wrap">
<div th:insert="~{fragments/navbar.html :: navbar}"></div>
<br> <br>
<div class="container">
<div class="row justify-content-center">
<div class="col-md-6">
<h2 th:text="#{removeAnnotations.header}"></h2>
<form id="pdfForm" class="mb-3">
<div class="custom-file">
<div th:replace="~{fragments/common :: fileSelector(name='fileInput', multiple=false, accept='application/pdf', remoteCall='false')}"></div>
</div>
<button type="submit" id="submitBtn" class="btn btn-primary" th:text="#{removeAnnotations.submit}"></button>
</form>
</div>
</div>
</div>
</div>
<div th:insert="~{fragments/footer.html :: footer}"></div>
</div>
<script src="js/local-pdf-input-download.js"></script>
<script>
document.getElementById('pdfForm').addEventListener('submit', async (e) => {
e.preventDefault();
const { PDFDocument } = PDFLib;
const processFile = async (file) => {
const origFileUrl = URL.createObjectURL(file);
const formPdfBytes = await fetch(origFileUrl).then(res => res.arrayBuffer());
const pdfDoc = await PDFDocument.load(formPdfBytes, { ignoreEncryption: true });
const pages = pdfDoc.getPages();
for (let i = 0; i < pages.length; ++i) {
const page = pages[i];
const annotations = page.node.Annots();
if (!annotations) continue;
const ctx = annotations.context;
for (let j = 0; j < annotations.size(); ++j) {
const annotation = annotations.get(j);
ctx.delete(annotation);
}
}
const pdfBytes = await pdfDoc.save();
const pdfBlob = new Blob([pdfBytes], { type: 'application/pdf' });
const fileName = (file.name ? file.name.replace('.pdf', '') : 'pdf') + '_removed_annotations.pdf';
return { processedData: pdfBlob, fileName };
};
await downloadFilesWithCallback(processFile);
});
</script>
</body>
</html>