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注意:不是浏览器新窗口预览pdf文件,浏览器窗口打开可以点击:js浏览器新窗口预览pdf文件
首先,需安装vue-pdf-embed
和vue3-pdfjs
。
template:
<div>
<div class="pdf-preview">
<div class="pdf-wrap">
<vue-pdf-embed :source="state.source" :style="scaleFun" class="vue-pdf-embed" :page="state.pageNum" />
</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>
</div>
js:
import { computed, onMounted, reactive } from 'vue';
import VuePdfEmbed from "vue-pdf-embed";
import { createLoadingTask } from "vue3-pdfjs/esm"; // 获得总页数
import source from '../../../../assets/平台用户操作手册-20230410.pdf';
const state = reactive({
source,
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 scaleFun = 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;
}
}
onMounted(() => {
loadingTask.promise.then((pdf:{numPages: number}) => {
state.numPages = pdf.numPages;
});
})
样式自己调整
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