我的任务是在html页面中嵌入相对较小的pdf文件,并打印整个html pade,包括iframe中的pdf文件。下面是我的html页面的结构:

下面是我的代码:
@media print{
body * {display:block;}
.toPrint{display:block; border:0; width:100%; min-height:500px}<body>
<button onclick="window.print()">Print</button>
<h3>MUST BE PRINTED</h3>
<p> MUST BE PRINTED</p>
<iframe class="toPrint" src="https://nett.umich.edu/sites/default/files/docs/pdf_files_scan_create_reducefilesize.pdf" style="width:100%; height:97vh;"></iframe>
<h3>MUST BE PRINTED</h3>
<p> MUST BE PRINTED</p>
</body>
目前我正在使用css @media query打印页面。但不幸的是,这个媒体查询只打印pdf的第一页。
我能做什么打印整个pdf文件?
发布于 2020-06-02 05:17:15
这里有一个使用javascript的更简单的解决方案。
<body>
<h3 id='first_h3'>MUST BE PRINTED</h3>
<p id ='first_paragraph'> MUST BE PRINTED</p>
<div id="pdfRenderer"></div>
<h3 id='second_h3'>MUST BE PRINTED</h3>
<p id='second_paragraph'> MUST BE PRINTED</p>
<input type="submit" value="Print All"
onclick="javascript:printPage()"
/>
</body>
<script>
pages =[] // initiate an empty list here
function printPage() {
var first_h3 = document.getElementById('first_h3');
// get the first h3 tag and
// then push its innerHTML into the list
pages.push(first_h3.innerHTML);
var first_paragraph = document.getElementById('first_paragraph');
// get the first paragraph and
// then push its innerHTML into the list
pages.push(first_paragraph.innerHTML);
var pdfRenderer = document.getElementById('pdfRenderer');
// get the pdfRenderer and
// then push its innerHTML into the list
pages.push(pdfRenderer.contentWindow.document.body.innerHTML);
var second_h3 = document.getElementById('second_h3');
// get the second h3 tag and
// then push its innerHTML into the list
pages.push(second_h3.innerHTML);
var second_paragraph = document.getElementById('second_paragraph');
// get the second paragraph and
// then push its innerHTML into the list
pages.push(second_paragraph.innerHTML);
if (pages && pages.length) {
// this if statement, just checks to ensure our list is not empty before running the code.
// here is the magic, we now set the parent window to be equal to all the concatenated innerHTML
window.content.document.body.innerHTML = pages;
// then we print this new window that contains all the different parts in the exact order we pushed them into the list.
window.print();
}
else {
// do nothing
}
}
</script>有了这个解决方案,避免了iframe超过一页就被切断的问题。其次,即使你有多个iframe,你也只能得到一个打印对话框。
https://stackoverflow.com/questions/36551150
复制相似问题