如何压缩 PDF 文件以用于电子邮件 3 种有效方法可供选择

Indeed, sending large files via email can be a hassle. In fact, it may cause you some problems, or it may not be delivered at all. Also, many email providers restrict attachments to specific file sizes, which is easy to exceed with a complex PDF. This can be especially true for PDFs with lots of images or lengthy documents. To address this, most people in this situation resort to file-sharing services like Dropbox or Google Drive. However, they almost forget a handy trick, and that is via file compression. Many free online tools can do this, and some are quite popular. But how to compress a PDF for email effectively? That is what you are about to learn as you continue reading the entire content below.

第 1 部分。电子邮件的最佳 PDF 大小是多少

事实是：对于电子邮件来说，没有一个理想的 PDF 大小的神奇数字。需要注意的是电子邮件平台的附件限制。流行的服务将附件限制在 20MB 左右，这个数字很容易达到，尤其是包含大量图像或非常长的文档的 PDF。因此，如果您的 PDF 大于上述 20MB 限制，您的电子邮件可能不会发送，并且您会收到错误消息。也就是说，与其瞄准特定大小或电子邮件的最佳 PDF 大小，不如谨慎行事，将其保持在 20MB 以下。这样，您就可以确信它会成功附加和发送。

第 2 部分：一键压缩 PDF 文件以用于电子邮件

Here’s a great and quick way to compress email files. Get ready to experience this free tool called FVC Free PDF Compressor, which can shrink your hefty PDF files without messing them up. Now, since most email services only allow attachments of around 20MB, PDFs with pictures or lots of text can easily reach that limit. This compressor can get your PDF way smaller, even under 100 kilobytes! You don’t need to worry about how it shrinks PDFs for email dramatically because it still maintains the quality of the files. In fact, you probably won't even notice a difference between the original and the shrunk version.

此外，这个神奇的工具超级好用，任何专业水平的人都可以使用它。你所要做的就是将 PDF 文件拖放到程序中，它会自动缩小文件。然后，只需单击一下，你就可以将较小的 PDF 保存到你的电脑中。这样，你可以快速将 PDF 在线压缩为电子邮件大小，使其大小适合通过电子邮件发送或上传，最终文档上没有任何水印。为了更好地了解其过程，请参阅下面的详细指南。

Step 1. On its main interface, click the Add PDF File tab and choose the PDF file that you need to compress.

Step 2. While the PDF file is uploading, the tool is also working for its compression.

Step 3. Once done, click the Download the PDF button.

三、使用编辑功能压缩 PDF 文件以用于电子邮件

If you prefer a tool that comes with editing features, then Adobe Acrobat is what you need for this task. Adobe Acrobat is a program known for creating, editing, and managing PDF files. It's like a powerful toolkit specifically designed for working with PDFs. One of its handy features is PDF compression, which you can use when you have a bulky PDF that won't fit into your email because of size limits. Adobe Acrobat, which comes with an online and desktop version, can help you compress large PDF files for email without messing with the quality too much. Well, it does this in a few ways, like reducing the size of images within the PDF or getting rid of unnecessary fonts. However, knowing Adobe and its suits, you must not be surprised if you find its learning curve steep. Hence, here are the steps to help you ease the process.

Step 1. Launch the Acrobat and open the PDF file that you need to work on. To do so, go to Tools-Optimize PDF-Open.

Step 2. Once you open the PDF file, click the Reduce File Size option from the new navigation shown. Then, set or use the editing options given to achieve your desired compression and optimization.

Step 3. After that, save the compressed PDF file.

第 4 部分。通过转换压缩 PDF 文件以用于电子邮件

Want to learn a new trick on how to compress a PDF to send via email? Let’s convert the file to JPG. This conversion trick can be done perfectly using PowerPoint. PowerPoint is a program you likely use to create presentations. Imagine a slideshow with text, pictures, and maybe even videos. PowerPoint lets you build these presentations with individual slides that you click through to show your audience. It's a popular tool for teachers, students, business people, and anyone who wants to share information visually.

现在，将 PDF 插入 PowerPoint 演示文稿可能很方便，但这可能不是最直观的过程。但一旦您这样做，生成 JPG 文件将变得轻而易举。不过别担心！我们可以逐步指导您，您需要按照这些步骤操作才能立即嵌入 PDF。

Step 1. Launch the PowerPoint on your PC and select the correct slide where you can open the PDF file.

Step 2. Now, navigate to the Insert tab menu and look for the Object option from the Text selection. Click the option, and a new window will pop up. From that window, toggle the Create from the File option, which is located on the left side of that interface. Then, click the Browse button, which will enable you to import the PDF file onto the slide.

Step 3. Once the PDF file is uploaded, you can convert it to JPG. To do so, right-click the PDF on the slide, select Save As Picture, and save it as a JPEG.

第 5 部分。有关 PDF 和压缩的常见问题

结论

This article talks about how to compress PDF files for email in the best ways. You can now ensure a smoother and better way to send your PDFs via email as long as you reduce them properly to achieve the file limitation.