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How to Reduce PDF Size with Adobe Acrobat (Updated for ) | Wondershare PDFelement.Steps on How to Compress a PDF with Adobe Acrobat 

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As one professional illustrator puts it, the first option is a "quick and dirty approach. You also can't use Acrobat DC or Pro DC once the free trial period has expired because those become defunct versions that are only suitable for viewing PDFs and doing a few other minor tasks. One option open to you is to upgrade to a paid subscription, but that's expensive when you don't need any of the other tools. For instance, if you only need a free tool to optimize your weekly newsletter before emailing it to your customers, it doesn't make sense to invest in expensive software.

The free version is virtually unlimited in functionality except for a few small restrictions, such as how large your files can be or how many files you can convert in a single batch. Even if you opt to upgrade and take advantage of all its basic and advanced PDF tools, you'll be paying a fraction of what it costs for a DC or Pro DC license for Acrobat.

You can do most of these with the free trial version, and that includes reducing PDF size. The simple steps are outlined in the following section. The process here has been tremendously simplified so that new or inexperienced users can work like professionals, thereby increasing their efficiency and overall productivity and throughput.

Click on "Tool" and go to "Compress"; here, you'll see a slider control for selecting output quality and a real-time preview of your final file size after optimization. Once you're comfortable with the quality setting, just hit "Optimize" to reduce the file size. Popular Categories. Arts and Entertainment Artwork Books Movies. Relationships Dating Love Relationship Issues. Hobbies and Crafts Crafts Drawing Games. All Categories. Edit this Article. We use cookies to make wikiHow great. By using our site, you agree to our cookie policy.

Cookie Settings. Learn why people trust wikiHow. Download Article Explore this Article methods. Related Articles. Article Summary. Method 1. Click the Select a file button. This opens your computer's file browser. Alternatively, you can drag the PDF file to the button to begin uploading the file.

Select your PDF file and click Open. This uploads your PDF to the server. The level you select determines how much the file will be compressed, which in turn determines the file's new size. The default option, Medium compression , is a good option for files containing images and text. The image quality may reduce a bit to make the file smaller, but the quality will still be pretty good.

If you want to make the smallest PDF possible, select High compression. This option will definitely reduce the quality of the file, and images won't look too good. But if you're not concerned about image quality and you need a much smaller file, this is the option for you. Low compression compresses the file by just a small amount, preserving the quality of images and other details. The file size will reduce slightly, but not by much.

Click the Compress button. This starts the compression process. When the compression is complete, you'll see a success message, as well as the size of the newly-compressed file alongside its previous size. Click Download to save the compressed file. This saves the smaller version of your PDF to your computer. Method 2. Open a PDF in the Preview app. You can do this by double-clicking the PDF.

If it opens in a different app, close that app, right-click the PDF, select Open with , and select Preview. Click the File menu. It's in the menu bar at the top of the screen. Click Export… on the menu. Click the "Format" menu and select PDF. If this option is already selected, you can skip this step. This reduces the overall file size. Reducing the file size can degrade the quality of the PDF, especially if there are images. If you still want to keep the larger version of the PDF as an original, you can save this smaller version with a different name.

Just type the word "smaller" just before the ". Click the Save button. This saves the new smaller version of your PDF.

Method 3. Open Adobe Acrobat Pro. Click the Tools tab. It's at the top of Acrobat. Click Optimize PDF. You'll see this red file icon under the "Protect and Standardize" header. Select the PDF you want to shrink. This opens the PDF in Acrobat. Click either Reduce File Size. This option is in the toolbar that's just above your PDF.

Click that if you see it. Select a location in which to save the image. You can also give the PDF a new name if you'd like. Click Save. The smaller PDF is now saved to your computer. Using the 'Reduce File Size' option does not greatly reduce the size.