blocks|key|281616|text|您可以使用命令行工具pdftk和stamp或background选项对pdf文件执行此操作。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|281617|例如：|281618|$+pdftk+file1.pdf+background+file2.pdf+output+combinedfile.pdf|code-block|syntax|javascript|281619|这将仅适用于单页背景文件。如果有多个页面，则可以改用multibackground命令。|281620|entityMap|0|LINK|mutability|MUTABLE|url|http://www.pdfhacks.com/pdftk/|1|https://www.pdflabs.com/docs/pdftk-man-page/#dest-op-multibackground^0|G|5|M|A|A|5|0|0|0|0|Q|F|Q|F|1|0^^$0|@$1|2|3|4|5|6|7|Y|8|@$9|Z|A|10|B|C]|$9|11|A|12|B|C]]|D|@$9|13|A|14|1|15]]|E|$]]|$1|F|3|G|5|6|7|16|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|17|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|18|8|@$9|19|A|1A|B|C]]|D|@$9|1B|A|1C|1|1D]]|E|$]]|$1|O|3|-4|5|6|7|1E|8|@]|D|@]|E|$]]]|P|$Q|$5|R|S|T|E|$U|V]]|W|$5|R|S|T|E|$U|X]]]]

You can do this with pdf files using the command line tool <a href="http://www.pdfhacks.com/pdftk/" rel="noreferrer">pdftk</a> using the <code>stamp</code> or <code>background</code> option.

e.g.

<pre><code>$ pdftk file1.pdf background file2.pdf output combinedfile.pdf
</code></pre>

This will only work with a one-page background file. If you have multiple pages, you can use the <a href="https://www.pdflabs.com/docs/pdftk-man-page/#dest-op-multibackground" rel="noreferrer"><code>multibackground</code></a> command instead.

blocks|key|281489|text|通过使用pyPdf，特别是mergePage操作，我成功地解决了这个问题(仅限PDF和Python)。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|281490|从文档中：|281491|#+add+page+4+from+input1,+but+first+add+a+watermark+from+another+pdf:
page4+=+input1.getPage(3)
watermark+=+PdfFileReader(file("watermark.pdf",+"rb"))
page4.mergePage(watermark.getPage(0))|code-block|syntax|javascript|281492|应该足以让你明白这一点。|281493|entityMap|0|LINK|mutability|MUTABLE|url|http://pybrary.net/pyPdf/^0|4|5|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|6|7|Y|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|Z|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|10|8|@]|9|@]|C|$]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]]]

I had success solving this problem (PDF only and Python) by using <a href="http://pybrary.net/pyPdf/" rel="noreferrer">pyPdf</a>, specifically the mergePage operation.

From the docs:

<pre><code># add page 4 from input1, but first add a watermark from another pdf:
page4 = input1.getPage(3)
watermark = PdfFileReader(file("watermark.pdf", "rb"))
page4.mergePage(watermark.getPage(0))
</code></pre>

Should be enough to get the idea.

blocks|key|1008084|text|如果你只处理postscript，那么唯一的“分页”就是“showpage”运算符。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1008085|在这种情况下，您可以简单地从文件1的开头到“showpage”的第一个实例抓取postscript数据，对另一个文件执行相同的操作，然后连接这两个postscript块来创建新页面。|1008086|如果这两个文件只有一个页面，那么您可以简单地合并这两个文件。|1008087|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

If you're dealing with only postscript, chances are the only 'pagebreaks' are the 'showpage' operator. 
In which case you can simply grab the postscript data from the beginning of file one to the first instance of 'showpage', do the same with the other file, then concatenate these 2 chunks of postscript to create your new page.

If the 2 files are only one page, then you may be able to simply join the 2 files.

blocks|key|1008192|text|用于Java的PDFbox支持覆盖类，允许以这种方式合并PDF。请看这个答案：Watermarking+with+PDFBox|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1008193|然而，根据我的经验，PyPDF2和PDFbox都是不可靠的，但这可能对某些人有帮助。|1008194|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/8929954/watermarking-with-pdfbox^0|13|O|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]]|C|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@]|C|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]]]

PDFbox for Java supports a Overlay class which allows to merge PDFs this way. See this answer: <a href="https://stackoverflow.com/questions/8929954/watermarking-with-pdfbox">Watermarking with PDFBox</a>

However, both PyPDF2 and PDFbox have been unreliable in my experience, but perhaps this is helpful for someone.

blocks|key|4346228|text|这里的许多答案似乎都非常过时。对于使用pdftk的公认答案尤其如此。Pdftk是旧的，有可怕的错误处理，需要旧版本的库，不再为ubuntu打包。2022年，如果可以避免的话，任何人都不应该使用pdftk做任何事情。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4346229|Qpdf是一个很好的开源程序，它可以做许多与pdftk相同的事情，并且它可以完成以下任务：|4346230|a.pdf+--覆盖b.pdf+--+c.pdf|4346231|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

Many of the answers here seem extremely out of date. This is especially so for the accepted answer, which uses pdftk. Pdftk is old, has terrible error handling, requires old versions of libraries, and is no longer packaged for ubuntu. Nobody in 2022 should be using pdftk for anything if they can possibly avoid it.
Qpdf is a nice open-source program that does many of the same things as pdftk, and it can do this task:
qpdf a.pdf --overlay b.pdf -- c.pdf

blocks|key|281559|text|你可以将这两个pdf转换成图像，并将其中一个覆盖在另一个层上，如。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|281560|你可以使用一个合适的图形库来工作。|281561|上面的水印建议也有很大的潜力，只要你不会在你选择的语言或图形/pdf库中遇到问题。|281562|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

You could convert both pdfs into images and overlay one on top of the other layer like. 

A suitable graphics library that you could use this would work. 

Watermark suggestion above has great potential too as long as you don't run into issues in your language or graphics/pdf library of choice.

blocks|key|281715|text|带有PdfFileStamp+class的Aspose.Pdf.Kit也可以做到这一点。它可以在most+of+the+time中正常工作。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|281716|entityMap|0|LINK|mutability|MUTABLE|url|http://www.aspose.com/documentation/.net-components/aspose.pdf.kit-for-.net/aspose.pdf.kit.pdffilestamp.html|1|https://stackoverflow.com/questions/6394834/^0|2|C|2|I|0|1C|G|1|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]]|D|@$9|S|A|T|1|U]|$9|V|A|W|1|X]]|E|$]]|$1|F|3|-4|5|6|7|Y|8|@]|D|@]|E|$]]]|G|$H|$5|I|J|K|E|$L|M]]|N|$5|I|J|K|E|$L|O]]]]

Aspose.Pdf.Kit with the<a href="http://www.aspose.com/documentation/.net-components/aspose.pdf.kit-for-.net/aspose.pdf.kit.pdffilestamp.html" rel="nofollow noreferrer"><code>PdfFileStamp</code> class</a> can do this, too. It works <a href="https://stackoverflow.com/questions/6394834/">most of the time</a> correctly.

blocks|key|3498704|text|我使用的是Mac工具PDFClerk+Pro。我导入了PDF页面，然后使用“合并页面(堆叠)”选项将它们合并。真的给我留下了深刻的印象。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3498705|entityMap|0|LINK|mutability|MUTABLE|url|http://sintraworks.com/index.php/sintraworks/downloads/^0|A|C|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

I used the Mac OS tool <a href="http://sintraworks.com/index.php/sintraworks/downloads/" rel="nofollow">PDFClerk Pro</a>. I imported the PDF pages, then merged them with the option "Merge Pages (Stacked)." It really impressed me.

blocks|key|4346298|text|2022及更高版本|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|4346299|对于许多用户来说，PDFTK仍然是一个强有力的竞争者，他们使用简单的跨平台命令行来执行许多任务。|4346300|4346301|+PDFtk服务器不需要Adobe+Acrobat或Reader，它可以在Windows、Mac和Linux上运行。|blockquote|4346302|4346303|4346304|您将在其他答案中看到多个命令。但一个缺点是它需要是licensed+for+distribution.|4346305|4346306|需要商业许可证才能将PDFtk与商业产品一起分发。|4346307|4346308|4346309|另一个每日更新的跨平台解决方案是Ghostscript+(但Windows二进制文件通常是每两年更新一次)，它也需要商业许可证。|4346310|它的主要优势是能够合并来自PostScript和PDF的指定页面以及PDFTK未处理的其他格式。然而，它并不是最好的PDF合并工具。同样，在StackOverflow+answers中有许多记录良好的方法来使用不同的组合任务的祖父应用程序，但可能需要比快速一行更复杂的方法，并且许多用户会将PDL或PS处理与PDFTK+(如上)相结合以最终覆盖。|4346311|那么什么是经常更新的，并且可用于商业用途的，并且在单个调用中完成任务？答案是QPDF+(许可使用Apache+License，version2.0)，它既有overlay+and+underlay+options，也有太多的其他功能要列出，但只有PDF。|4346312|最简单的一种方法是从两个页面中编写一个新页面，假设只有第一个页面，并且不更改任何一个来源。缺点是有这么多的选项，包括密码，语法可能会变得复杂，好消息是它可能会在下一个版本11中被彻底修改。还要注意它不喜欢带空格的文件名。|4346313|首先生成一个新的空输入文件，其中包含来自file1的第1页(非常简单)|4346314|qpdf+--empty+--pages+"file1.pdf"+1+--+"output.pdf"|code-block|syntax|javascript|4346315|现在用file2的第一页覆盖它(这有点复杂)|4346316|qpdf+output.pdf+--overlay+"file2.pdf"+--from=1+--+--replace-input|4346317|这些命令可以组合在一个更简单的行中，对于本例，让我们使用文件1的第2页|4346318|qpdf+--empty+--pages+"file1.pdf"+2+--++--overlay+"file2.pdf"+--from=1+--+"output2.pdf"|4346319|您还需要注意，混合页面大小可能不会像预期的那样工作，因此，首先的第二个页面居中并缩小到合适的大小。|4346320|​|4346321|📷|atomic|4346322|4346323|entityMap|0|LINK|mutability|MUTABLE|url|https://www.pdflabs.com/tools/pdftk-server/|1|https://qpdf.readthedocs.io/en/stable/cli.html?highlight=overlay#overlay-and-underlay-options|2|IMAGE|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/f5742875548c346d2938b0e9636fe2b6.png|imageAlt^0|0|4|0|0|0|0|0|0|P|Q|0|0|0|0|0|0|0|0|0|L|26|S|1|0|0|0|0|0|0|0|0|0|0|0|1|2|0|0^^$0|@$1|2|3|4|5|6|7|25|8|@$9|26|A|27|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|28|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|29|8|@]|D|@]|E|$]]|$1|I|3|J|5|K|7|2A|8|@]|D|@]|E|$]]|$1|L|3|-4|5|6|7|2B|8|@]|D|@]|E|$]]|$1|M|3|-4|5|6|7|2C|8|@]|D|@]|E|$]]|$1|N|3|O|5|6|7|2D|8|@]|D|@$9|2E|A|2F|1|2G]]|E|$]]|$1|P|3|-4|5|6|7|2H|8|@]|D|@]|E|$]]|$1|Q|3|R|5|K|7|2I|8|@]|D|@]|E|$]]|$1|S|3|-4|5|6|7|2J|8|@]|D|@]|E|$]]|$1|T|3|-4|5|6|7|2K|8|@]|D|@]|E|$]]|$1|U|3|V|5|6|7|2L|8|@]|D|@]|E|$]]|$1|W|3|X|5|6|7|2M|8|@]|D|@]|E|$]]|$1|Y|3|Z|5|6|7|2N|8|@$9|2O|A|2P|B|C]]|D|@$9|2Q|A|2R|1|2S]]|E|$]]|$1|10|3|11|5|6|7|2T|8|@]|D|@]|E|$]]|$1|12|3|13|5|6|7|2U|8|@]|D|@]|E|$]]|$1|14|3|15|5|16|7|2V|8|@]|D|@]|E|$17|18]]|$1|19|3|1A|5|6|7|2W|8|@]|D|@]|E|$]]|$1|1B|3|1C|5|16|7|2X|8|@]|D|@]|E|$17|18]]|$1|1D|3|1E|5|6|7|2Y|8|@]|D|@]|E|$]]|$1|1F|3|1G|5|16|7|2Z|8|@]|D|@]|E|$17|18]]|$1|1H|3|1I|5|6|7|30|8|@]|D|@]|E|$]]|$1|1J|3|1K|5|6|7|31|8|@]|D|@]|E|$]]|$1|1L|3|1M|5|1N|7|32|8|@]|D|@$9|33|A|34|1|35]]|E|$]]|$1|1O|3|1K|5|6|7|36|8|@]|D|@]|E|$]]|$1|1P|3|-4|5|6|7|37|8|@]|D|@]|E|$]]]|1Q|$1R|$5|1S|1T|1U|E|$1V|1W]]|1X|$5|1S|1T|1U|E|$1V|1Y]]|1Z|$5|20|1T|21|E|$22|23|24|-4]]]]

2022 onwards
PDFTK is still a strong contender for many users with simple cross platform command lines for many tasks.
<blockquote>
PDFtk Server does not require Adobe Acrobat or Reader, and it runs on Windows, Mac OS X and Linux.
</blockquote>
You will see multiple commands in the other answers. But one drawback is that it needs to be <a href="https://www.pdflabs.com/tools/pdftk-server/" rel="nofollow noreferrer">licensed for distribution.</a>
<blockquote>
A commercial license is required to distribute PDFtk with your commercial product.
</blockquote>
Another daily updated cross platform Solution is Ghostscript (but Windows binaries are often bi-annual) and it too requires a commercial license.
Its primary strength is the ability to merge nominated pages from both PostScript AND PDF along with other formats not handled by PDFTK. However it does not profess to be the optimum PDF merge tool. Again there are many well documented ways in StackOverflow answers to use that grandfather application for different combinational tasks, but may requires more complex approaches than a quick one liner, and many users will combine PDL or PS handling with PDFTK (above) for final overlay.
So what is updated frequently, and is available for commercial use and does the task in a single call? The answer is QPDF (licensed under the Apache License, Version 2.0), which has both <a href="https://qpdf.readthedocs.io/en/stable/cli.html?highlight=overlay#overlay-and-underlay-options" rel="nofollow noreferrer">overlay and underlay options</a> with too many many other abilities to list, but is PDF only.
At its simplest one method is to write a new page from 2 others lets say just page 1, and not changing either source. The downside is that with so many options including passwords the syntax can become complex, good news is it may be overhauled in next version 11. Also beware it does not like file names with spaces.
First generate a new empty input file with page 1 from file1 (easy enough)
<pre><code>qpdf --empty --pages &quot;file1.pdf&quot; 1 -- &quot;output.pdf&quot;
</code></pre>
Now overlay that with first page of file2 (this is a bit more complicated)
<pre><code>qpdf output.pdf --overlay &quot;file2.pdf&quot; --from=1 -- --replace-input
</code></pre>
The commands can be combined in one simpler line and for this example lets use page 2 of file 1
<pre><code>qpdf --empty --pages &quot;file1.pdf&quot; 2 -- --overlay &quot;file2.pdf&quot; --from=1 -- &quot;output2.pdf&quot;
</code></pre>
You will also need to be aware that mixing page sizes will work however perhaps not as expected so second on first is centered and reduced to fit.
<a href="https://i.stack.imgur.com/xXGjR.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/xXGjR.png" alt="enter image description here" /></a>

blocks|key|4346086|text|VeryPDF+PDF编辑器有一个PDF覆盖功能，看看这个网页，|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4346087|http://www.verypdf.com/wordpress/201304/how-to-overlay-pdf-to-another-pdf-35885.html|offset|length|4346088|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|2C|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@$D|O|E|P|1|Q]]|A|$]]|$1|F|3|-4|5|6|7|R|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|C]]]]

VeryPDF PDF Editor has a PDF Overlay function, look at this web page,

<a href="http://www.verypdf.com/wordpress/201304/how-to-overlay-pdf-to-another-pdf-35885.html" rel="nofollow">http://www.verypdf.com/wordpress/201304/how-to-overlay-pdf-to-another-pdf-35885.html</a>

blocks|key|281913|text|对于OS+X，有PDF信头。除了覆盖PDF之外，不做任何其他事情。https://itunes.apple.com/us/app/pdf-letterhead/id976548033?mt=12|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|281914|entityMap|0|LINK|mutability|MUTABLE|url|https://itunes.apple.com/us/app/pdf-letterhead/id976548033?mt=12^0|X|1S|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

For OS X there is PDF letterhead. Doesn't do anything else than just overlaying PDF's. <a href="https://itunes.apple.com/us/app/pdf-letterhead/id976548033?mt=12" rel="nofollow">https://itunes.apple.com/us/app/pdf-letterhead/id976548033?mt=12</a>

I have two pdf or postscript files (I can work with either one). What I want to do is merge each page on top of the other so that page1 of document A will be combined with page 1 of document B to produce page 1 of the output document. This isn't something I necessarily want need to do programatically, although that would be helpful.

Any ideas?

overlay one pdf or ps file on top of another

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我有两个pdf或postscript文件(我可以使用任何一个)。我想要做的是将每个页面叠加在一起，这样文档A的page1将与文档B的页面1组合在一起，生成输出文档的页面1。这不一定是我想要通过编程来做的事情，尽管这会很有帮助。有什么想法吗？

问将一个pdf或ps文件覆盖在另一个文件之上。
EN

回答 11

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问将一个pdf或ps文件覆盖在另一个文件之上。EN

回答 11

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问将一个pdf或ps文件覆盖在另一个文件之上。
EN