Vue 3 中使用 vue - pdf - embed + vue3 - pdfjs 在线预览 PDF - IT评测·应用市场-qidao123.com

npm install vue - pdf - embed vue3 - pdfjs

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<template>
<div class="pdf-container">
<PDFView :pdfUrl="jsPdf" />
</div>
</template>
<script setup>
import PDFView from "@/components/PdfPreview/index.vue
";
import jsPdf from "/pdf/test.pdf"; // 本地地址
// const jsPdf = 'http://localhost/test.pdf' // 线上地址也可，但需要注意跨域问题
</script>
<style scoped>
.pdf-container {
overflow: auto;
}
</style>

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@/components/PdfPreview/index.vue

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<template>
<div class="pdf-preview">
<div id="page - view" :style="{
position: 'absolute',
top: '50%',
left: '50%',
transform: `translate(-50%, -50%) scale(${state.scale})`,
width: '100%',
height: `${pageHeight}`,
}">
<vue - pdf - embed :source="state.source" :page="state.pageNum" textLayer />
</div>
</div>
<div class="page - tool">
<div class="page - tool - item" @click="lastPage">上一页</div>
<div class="page - tool - item" @click="nextPage">下一页</div>
<div class="page - tool - item">{{ state.pageNum }}/{{ state.numPages }}</div>
<div class="page - tool - item" @click="pageZoomOut">放大</div>
<div class="page - tool - item" @click="pageZoomIn">缩小</div>
</div>
</template>
<script setup lang="ts">
import { reactive, onMounted, ref } from "vue";
import VuePdfEmbed from "vue - pdf - embed";
import { createLoadingTask } from "vue3 - pdfjs";
const props = defineProps({
pdfUrl: {
type: String,
required: true,
},
});
const pageHeight = ref('100%');
const state = reactive({
source: props.pdfUrl, //预览pdf文件地址
pageNum: 1, //当前页面
scale: 1, // 缩放比例
numPages: 0, // 总页数
});
function lastPage() {
if (state.pageNum > 1) {
state.pageNum -= 1;
}
}
function nextPage() {
if (state.pageNum < state.numPages) {
state.pageNum += 1;
}
}
function pageZoomOut() {
if (state.scale < 2) {
state.scale += 0.1;
pageHeight.value = (parseInt(pageHeight.value) - 5.0) + '%';
}
}
function pageZoomIn() {
if (state.scale > 1) {
state.scale -= 0.1;
pageHeight.value = (parseInt(pageHeight.value) + 5.0) + '%';
}
}
onMounted(() => {
const loadingTask = createLoadingTask(state.source);
loadingTask.promise.then((pdf: { numPages: number }) => {
state.numPages = pdf.numPages;
});
});
</script>
<style lang="css" scoped>
.pdf-preview {
position: relative;
height: 100vh;
padding: 20px 0;
box-sizing: border-box;
background-color: e9e9e9;
}
.pdf-wrap {
overflow-y: auto;
}
.vue - pdf - embed {
text-align: center;
width: 515px;
border: 1px solid #e5e5e5;
margin: 0 auto;
box-sizing: border-box;
}
.page - tool {
position: absolute;
bottom: 35px;
padding-left: 15px;
padding-right: 15px;
display: flex;
align-items: center;
background: rgb(66, 66, 66);
color: white;
border-radius: 19px;
z-index: 100;
cursor: pointer;
margin-left: 50%;
transform: translateX(-50%);
}
.page - tool - item {
padding: 8px 15px;
padding-left: 10px;
cursor: pointer;
}
</style>

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