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This is an article on how to reduce the size of PDF files on Windows or Mac computers. If you want to use a free online tool, try SmallPDF or Adobe Acrobat’s online file compression tool. You can also reduce PDF file size with the Preview program for macOS and Adobe Acrobat Pro.
Steps
Use Smallpdf.com PDF file compression tool
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Go to https://smallpdf.com using a web browser. If you want to reduce the size of your PDF file, you can do it in minutes using the tool on Smallpdf’s free website.
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Click the red Compress PDF button (Compress PDF). This is the button in the top left corner of the page.
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Click the Choose Files button in the middle of the page.
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Select the PDF file and click Open . The PDF file will be uploaded.
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Select the compression method. The Basic type of compression is completely free and reduces the file size by 40%. If you want the file to be smaller, you can choose Strong compression to reduce the file size by 75% (but the file will be of lower quality).
- Strong Option has a fee – you need to sign up for a Pro membership according to the website’s instructions.
- The Basic option reduces a portion of the file size without affecting the file quality much, so it’s the right choice for most needs.
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Click the red COMPRESS button. You’ll see this button below the compression options. When the compression is complete, the Download option is displayed in the right pane.
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Click the blue Download button. This is the button in the upper right corner. The compressed PDF file will be saved to your computer.
- You may have to click Save or Download to download the file.
Using Adobe Acrobat Pro
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Open PDF files in Adobe Acrobat Pro. If you want to reduce file size without worrying about quality loss, you can use Adobe Acrobat Pro. If you have Acrobat Pro, open the program, click the File menu, select Open , select the PDF file, and click Open .
- If you’re not using the paid version of Adobe Acrobat Pro, simply visit https://www.adobe.com/acrobat/online/compress-pdf.html in your browser. Next, drag the PDF file into the Compress PDF box or click Select a file to select the file to be reduced automatically – when the compression is complete, you’ll click Download to save.
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Click File in the menu bar at the top of the screen.
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Click Reduce File Size or Compress PDF . The choice you see will depend on the version of Acrobat. [1] X Research Source
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Select the folder to save the file. You can also give the PDF a new name if you like.
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Click Save . Now the smaller PDF file has been saved to the computer.
Using Preview on Mac
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Open the PDF document in the Preview app. You can do this by double-clicking the PDF file. If the file is open in another application, you will close that application, then right-click the PDF file, select Open with and select Preview .
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Click the File menu. This is the option in the menu bar at the top of the screen.
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Click Export on the menu. Remember to choose Export instead of Export as PDF .
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Click the “Format” menu and select PDF . If the option is already selected, you can skip this step.
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Click the “Quartz Filter” menu and select Reduce File Size . This is a file size reduction operation.
- Reducing the file size can reduce the quality of PDF documents, especially those with images.
- If you still want to keep the original PDF file, you can save the reduced version with a different name. Just type the word “small” right before the “.pdf” extension in the filename at the top of the window.
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Select the folder to save the PDF file.
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Click the Save button. Thus, a smaller version of the PDF file will be saved.
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This article is co-authored by a team of editors and trained researchers who confirm the accuracy and completeness of the article.
The wikiHow Content Management team carefully monitors the work of editors to ensure that every article is up to a high standard of quality.
This article has been viewed 30,471 times.
This is an article on how to reduce the size of PDF files on Windows or Mac computers. If you want to use a free online tool, try SmallPDF or Adobe Acrobat’s online file compression tool. You can also reduce PDF file size with the Preview program for macOS and Adobe Acrobat Pro.
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