vue预览pdf集中方法

我这里主要是用在vue3项目中，但是vue2或者react可以借鉴这里面的包依赖，应该也可以，可以尝试着写写，或者找其他方法。

方法一：

iframe：这种方法显示有点丑
展示效果就不展示了，就iframe，主要看你浏览器怎么识别了，你可以想象得到；

      <iframesrc="E:\\1.pdf"frameborder="0"style="width: 80%; height: 100vh; margin: auto; display: block"></iframe>

方法二：

展示效果：

需要包依赖：

    "pdfobject": "^2.2.12",

代码：

<template><a-layout class="layout"><Header /><a-layout-content class="main-container"><div class="topBtn"><div><a-button type="primary" @click="handleBack" ghost>返回上一页</a-button></div><div><a-button type="primary" @click="downPdf">下载说明书</a-button></div></div><div id="example1"></div></a-layout-content></a-layout>
</template><script lang="ts" setup>
import { getCurrentInstance, ref, onMounted, onUnmounted } from 'vue';
import { useRouter, useRoute, createWebHistory } from 'vue-router';
import Header from '/@/components/Header/index.vue';
const router = useRouter();
import { serverAddress } from '/@/serve/index';
const VITE_APP_URL = serverAddress();
import { download } from '/@/libs/utils/download';const handleBack = () => {router.go(-1);
};
var pdfobject = require('pdfobject');
// 参考网址， https://blog.csdn.net/liang_wf/article/details/101453932
let pdfPath = ref('http://192.168.11.50:8102/database/bio/load_file/BYimage/ncov.pdf');
const downPdf = () => {download(pdfPath.value, 'PDF报告.pdf');
};
onMounted(() => {var options = {height: '100%',pdfOpenParams: {view: 'FitH',page: '1',toolbar: '0',//   toolbar: '1',// pagemode: 'none',},};pdfobject.embed(pdfPath.value, '#example1', options);
});
</script><style lang="less" scoped>
#example1 {//   border: 1px solid red;//   width: 100%;//   display: block;//   margin: auto;height: calc(100vh - 146px - 19px);
}.layout {//   min-width: 1400px;min-height: 100vh;
}.main-container {flex-direction: row;padding: 19px 70px;background-color: @bg-color;.topBtn {// border: 1px solid red;height: 60px;line-height: 60px;display: flex;justify-content: space-between;}
}
</style>

方法三：

展示效果：

效果一：分页

效果二：不分页

需要包依赖：

    "vue-pdf-embed": "^1.1.6","vue3-pdfjs": "^0.1.6",

代码：

自己调参数，选择符合自己的

<template><div class="pdf-preview"><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><div class="pdf-wrap"><vue-pdf-embed :source="state.source" :style="scale" class="vue-pdf-embed" :page="state.pageNum" /></div></div>
</template>
<script setup lang="ts">
import { reactive, computed } from "vue";
import VuePdfEmbed from "vue-pdf-embed/dist/vue3-pdf-embed";
import { createLoadingTask } from "vue3-pdfjs";const props = defineProps({pdfUrl: {type: String,required: true}
})// const emit = defineEmits<{ (event: 'getPdfUrl', name: string): void }>()
// const getPdfUrl = ()=>{
//   emit('getPdfUrl', props.pdfUrl)
// }const state = reactive({source: `http://192.168.11.50:8102/database/bio/load_file/BYimage/ncov.pdf`, // 预览pdf文件地址pageNum: 1, // 当前页面scale: 1, // 缩放比例numPages: 0, // 总页数
});const loadingTask = createLoadingTask(state.source);
loadingTask.promise.then((pdf: { numPages: number }) => {state.numPages = pdf.numPages;
});const scale = computed(() => `transform:scale(${state.scale})`)
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;}
}
function pageZoomIn() {if (state.scale > 1) {state.scale -= 0.1;}
}</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>

<template><div class="pdf-preview"><!-- <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> --><div class="pdf-wrap"><vue-pdf-embed :source="state.source" :style="scale" class="vue-pdf-embed" :page="state.pageNum" /></div></div>
</template>
<script setup lang="ts">
import { reactive, computed } from "vue";
import VuePdfEmbed from "vue-pdf-embed/dist/vue3-pdf-embed";
import { createLoadingTask } from "vue3-pdfjs";const props = defineProps({pdfUrl: {type: String,required: true}
})// const emit = defineEmits<{ (event: 'getPdfUrl', name: string): void }>()
// const getPdfUrl = ()=>{
//   emit('getPdfUrl', props.pdfUrl)
// }const state = reactive({source: `http://192.168.11.50:8102/database/bio/load_file/BYimage/ncov.pdf`, // 预览pdf文件地址});const loadingTask = createLoadingTask(state.source);
loadingTask.promise.then((pdf: { numPages: number }) => {state.numPages = pdf.numPages;
});const scale = computed(() => `transform:scale(${state.scale})`)
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;}
}
function pageZoomIn() {if (state.scale > 1) {state.scale -= 0.1;}
}</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>