Windows操作系统不提供合并(Windows)PDF文件的内置方法，但您并非没有选择。在本文中，我们将引导您完成每个选项。
将多个PDF(PDFs)合并到一个文档中有助于减少混乱，并使阅读、打印和共享更容易。但是，您不会找到在Windows 11和 10 中合并(Windows 11)PDF文件的本地方法。因此，这里有几个第三方PDF工具和 Web 应用程序可以代替您完成这项工作。
如果您的 PC 上有Adobe Acrobat DC(Adobe Acrobat DC)的副本，您可以使用它快速合并两个或多个PDF。PDF编辑器还可以在合并文件之前轻松重新排列和删除文件中的页面。
1. 打开Adobe Acrobat DC并切换到工具(Tools)选项卡。然后，找到合并文件(Combine Files)工具并选择打开(Open)。
2. 选择标有添加文件(Add Files)的按钮。如果您已经在Adobe Acrobat Pro中打开了文件，请选择添加打开的文件(Add Open Files)来插入它们。
3. 选择要合并的文件并选择打开(Open)。或者，将它们拖放到Adobe Acrobat Pro窗口中。
提示(Tip)：按住Ctrl按钮可选择同一目录中的多个文件。
4. 按您想要合并的顺序拖动文件。如果您还想重新排列或删除文件中的页面，请突出显示缩略图并选择展开(Expand)按钮（或只需双击它）。然后，根据需要对页面进行排序或删除。
5. 选择工具栏上的选项(Options)并指定文件质量和其他首选项，例如删除源文件、添加书签等。
6. 选择屏幕右上角的组合按钮。(Combine)
7.在菜单栏上选择文件(File)>另存为。(Save as)
8. 选择一个目录，输入新PDF的名称，然后选择保存(Save)。
如果您没有订阅Adobe Acrobat DC，您可以使用Adobe Acrobat 的在线版本(online version of Adobe Acrobat)免费组合文件，并具有上述相同的一组功能。您唯一需要的是Adobe的免费帐户。Foxit PDF是(Foxit PDF)Adobe Acrobat Pro的流行替代品，它还提供免费的在线工具来合并 PDF(free online tool to merge PDFs)。
PDF 合并和拆分器(PDF Merger & Splitter)（免费）
PDF Merger & Splitter是一款免费应用程序，可让您将多个PDF文档合并为一个PDF文件。它可以在Microsoft Store上下载。
1. 安装并打开PDF Merger & Splitter。然后，选择合并 PDF(Merge PDF)。
2. 选择添加 PDF( Add PDFs)按钮并添加要合并的PDF文件。(PDF)
3. 使用上移(Move Up)和下移(Move Down)按钮更改文件的顺序。该程序不允许您重新排序或删除PDF页面。
4. 如果需要，使用页面大小设置(Page size settings)旁边的下拉菜单来确定页面大小。
5. 选择合并 PDF(Merge PDF)按钮并保存输出文件。
PDF Reader Pro是另一个提供类似功能的优秀Microsoft Store应用程序。(Microsoft Store)尽管该程序提供应用内购买，但您无需付费即可合并文档。它还可以让您编辑 PDF(edit PDFs)。
如果您在从 Microsoft Store 下载时遇到问题(trouble downloading from the Microsoft Store)，那么PDFsam应该可以很好地完成这项工作。该程序的基本版本允许您免费将PDF(PDFs)转换为单个文档。您可以从官方PDFsam网站获取它。
1. 安装并打开PDFSam。然后，选择合并(Merge)。
2. 选择添加(Add)并选择要合并的文件。或者，将文件拖到PDFsam窗口中。
3. 按您想要的顺序拖动文件。您还可以通过在页面范围( Page Range)列（例如，1-10、12、14-16）下为每个文件指定页面范围来排除页面。
4. 使用合并设置(Merge settings)部分根据需要调整输出文件——例如，如果页码为奇数，则添加空白页，标准化页面大小等。
5. 指定保存目的地并选择运行(Run)。
PDF Creator Free是另一个非 Microsoft Store应用程序，可以快速组合PDF(PDFs)。如果您不想要PDFsam Basic的额外功能，这是一个可靠的选择。
PDF在线(PDF Online)（免费）
PDF Online是一个免费的网络应用程序，可让您轻松合并PDF文件。它用途广泛，还可以将PDF(PDFs)转换为PowerPoint幻灯片、Excel电子表格和Word文档。它甚至还具有将PDF(PDFs)保存为PNG和JPG图像文件格式的功能，因此您可能希望为该站点添加书签以备后用。
1.在您喜欢的网络浏览器中加载 PDF Online并选择(Load PDF Online)合并 PDF(Merge PDF)。
2. 选择本地设备(Local device)并选择要合并的PDF 。(PDFs)或者，将文件拖到浏览器选项卡中。
3.整理PDF文件。如果您想组织和删除文件中的单个页面，您也可以选择查看所有页面。(View all pages)
4. 选择合并(Merge)选项以合并文件。
5. 选择下载(Download)。
其他允许您快速合并PDF文件的顶级免费PDF网络应用程序包括合并 PDF(Combine PDF)和Smallpdf。另外，不要忘记您也可以使用在线版本的Adobe Acrobat和Foxit PDF来完成同样的事情。
做你的选择
如您所见，您有多种方法可以在Windows 11和 10 中合并(Windows 11)PDF(PDFs)。但是，您的隐私始终很重要，因此在合并包含敏感或机密信息的文件时，请务必坚持使用本地应用程序。如果您还使用Mac，则只需使用 Apple Preview 即可在 macOS 中合并 PDF(combine PDFs in macOS just by using Apple Preview)。
How to Combine PDF Files in Windows 11/10
Windows opеrating systems don’t provіde built-in meаns to combine PDF fileѕ, but you аren’t without оptions. In thіs article, we’ll walk you through each of those options.
Combining multiple PDFs into a single document helps reduce clutter and makes reading, printing, and sharing easier. However, you won’t find native ways to merge PDF files in Windows 11 and 10. So, here are several third-party PDF tools and web apps that can do the job for you instead.
If you have a copy of Adobe Acrobat DC on your PC, you can use it to combine two or more PDFs quickly. The PDF editor also makes it easy to rearrange and delete pages in files before merging them.
1. Open Adobe Acrobat DC and switch to the Tools tab. Then, locate the Combine Files tool and select Open.
2. Select the button labeled Add Files. If you already have the files open in Adobe Acrobat Pro, select Add Open Files instead to insert them.
3. Pick the files you want to combine and select Open. Or, drag and drop them into the Adobe Acrobat Pro window.
Tip: Hold down the Ctrl button to select multiple files from the same directory.
4. Drag the files in the order you want to combine them. If you also want to rearrange or delete the pages within a file, highlight the thumbnail and select the Expand button (or just double-click it). Then, sort or trash pages as needed.
5. Select Options on the toolbar and specify the file quality and other preferences—e.g., such as deleting the source files, adding bookmarks, etc.
6. Select the Combine button at the upper-right corner of the screen.
7. Select File > Save as on the menu bar.
8. Pick a directory, enter a name for the new PDF, and select Save.
If you don’t have a subscription to Adobe Acrobat DC, you can use the online version of Adobe Acrobat to combine files for free with the same set of features above. The only thing you need is a free account with Adobe. Foxit PDF, a popular alternative to Adobe Acrobat Pro, also offers a free online tool to merge PDFs.
PDF Merger & Splitter is a free app that allows you to combine multiple PDF documents into a single PDF file. It’s available for download on the Microsoft Store.
1. Install and open PDF Merger & Splitter. Then, select Merge PDF.
2. Select the Add PDFs button and add the PDF files you want to merge.
3. Use the Move Up and Move Down buttons to change the order of the files. The program does not allow you to reorder or remove PDF pages.
4. Use the drop-down menu next to Page size settings to determine the page size if needed.
5. Select the Merge PDF button and save the output file.
PDF Reader Pro is another excellent Microsoft Store app that offers similar functionality. Although the program offers in-app purchases, you don’t have to pay to combine documents. It also lets you edit PDFs.
If you have trouble downloading from the Microsoft Store, then PDFsam should do the job just fine. The basic version of the program allows you to convert PDFs into a single document for free. You can grab it from the official PDFsam website.
1. Install and open PDFSam. Then, select Merge.
2. Select Add and pick the files you want to merge. Or, drag the files into the PDFsam window.
3. Drag the files in the order you want. You can also exclude pages by specifying page ranges under the Page Range column (e.g., 1-10, 12, 14-16) for each file.
4. Use the Merge settings section to tweak the output file as needed—e.g., add a blank page if the page number is odd, normalize page sizes, and so on.
5. Specify a save destination and select Run.
PDF Creator Free is another non-Microsoft Store app that can put together PDFs quickly. It’s a solid alternative if you don’t want the extra features from PDFsam Basic.
PDF Online is a free web app that lets you easily merge PDF files. It’s incredibly versatile and can also convert PDFs into PowerPoint slides, Excel spreadsheets, and Word documents. It even sports the ability to save PDFs in the PNG and JPG image file format, so you might want to bookmark the site for later.
1. Load PDF Online in your favorite web browser and select Merge PDF.
2. Select Local device and pick the PDFs you want to merge. Or, drag the files into the browser tab.
3. Organize the PDF files. You can also select View all pages if you want to organize and delete individual pages within files.
4. Select the Merge option to combine the file.
5. Select Download.
Other top free PDF web apps that allow you to merge PDF files quickly include Combine PDF and Smallpdf. Also, don’t forget that you can also use the online versions of Adobe Acrobat and Foxit PDF to accomplish the same thing.
Make Your Pick
As you just saw, you’ve got multiple ways to combine PDFs in Windows 11 and 10. However, your privacy matters always, so make it a point to stick to local apps while merging files containing sensitive or confidential information. If you also use a Mac, you can combine PDFs in macOS just by using Apple Preview.
