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How To Compress A PDF File In Nitro Pro

You can use Nitro Pro to create and edit PDFs and digital documents and complete various tasks, including compressing PDFs and reducing them. This popular application is a useful alternative to Adobe Acrobat; it includes editing functions, the capability to add browser-based electronic signatures, and other PDF productivity tools.

With that in mind, if you’re a user of this application then you may be looking for an easy and quick way to compress your PDFs. The good news is, with our step-by-step guide we have the solution you’re looking for.

Our simple-to-follow instructions will take you through the process so that you’ll be compressing your files in no time. In this post, we’ll also share the top factors to consider before making your changes. Finally, we’ll talk through some of the best alternatives to Nitro Pro when using different operating systems and devices. If you’re ready to get started, let’s jump in!

How To Compress A PDF File Using Nitro Pro Step-By-Step

Nitro Pro is a subscription-based PDF editor and productivity tool. Using the application, you can perform a number of editing tasks. Nitro Pro includes a powerful compression tool, which enables you to shrink files significantly. This tool is simple and quick to use.

If you’re ready to start compressing your PDF, follow the step-by-step instructions below:

  1. Open a PDF in Nitro Pro.
  2. Click “File” and then “Optimize PDF”.
  3. Select one of the following:
    1. Reduced size” – will reduce to the smallest size possible.
    2. Reduced size and print ready” – will reduce to the smallest size possible while still retaining good print quality.
    3. Custom” – to manually set the compression/dimensions.
  4. When you’re satisfied, click “Optimize” to continue with making the changes. You can click “Cancel” to interrupt the process and exit.

What Do You Need To Know About Compressing A PDF File

You’ve heard about the benefits, now you’re ready to get started. But it’s worth reading a few important factors first:

  • There are a great many benefits to reducing the size of your PDFs. File reduction makes documents much easier to share, transfer and send over email. The smaller the size, the more you can fit into an email before reaching capacity and email limits. Uploads will be faster, too.
  • When using a compression tool, generally speaking, the more you reduce, the lower the quality of images, fonts and other content within the document.
  • Once you’ve reduced the size of your file, you can reduce it again. However, doing so will not provide a greater level of reduction than the first time around.
  • If your document contains lots of images, the file size will be large. However, when sharing this document, it’s best not to reduce it too much in order to retain the quality of images. You can strike a balance between quality and file size by selecting a medium compression rate when making your transformation. This is the best option to keep the quality of the images intact.

Alternatives To Compressing A PDF File On A PC

Before you start reducing your file with Nitro Pro, you may want to consider other options. Whether using Windows, Mac or Linux, we’ve got your covered with some of the best alternatives on the market.


Windows users can use Adobe Acrobat to transform their documents. You can edit, add signatures and compress PDFs. Below you will find step-by-step instructions for reducing your document:

  1. Open your file in Adobe Acrobat.
  2. Head to “File” > “Reduce File Size” or “Compress PDF”.
  3. You will be prompted to select the compression level. Choose from high, medium or low depending on the result you want. If you opt for high compression, you will get the least quality output. Choose the medium option for a balance between quality and file size.
  4. When your task is complete you can choose “Download” to receive your file.


If using a Mac, you can use the default PDF viewing program Preview to complete your task. Follow these step-by-step instructions to reduce the size of your document:

  1. Open your document in Preview. You can double-click or right-click and head to “Open With” > “Preview”.
  2. Then click “File” > “Export”.
  3. In the “Quartz Filter” drop-down box select “Reduce File Size”.
  4. If you’re happy, click to finish the process. Don’t forget to save or export.


One of the best alternatives for Linux users is the online Adobe Acrobat editor. Using this program, Linux users can easily and quickly reduce the size of their PDFs. You can follow the same process as outlined above for Windows users. Simply follow steps 1-4 above to complete the transformation.

Alternatives To Compressing A PDF File On A Smartphone

Nitro Pro is available on iPhone and iPad. However, at the time of writing, it’s not available on Android devices. Below we’ve included details of how you can find alternative options for both Android and iPhone handsets.


For iPhone users, search for a third-party app in the App Store to reduce your document size. Search “PDF compressor” or similar in the App Store. Once you’ve found a suitable app, download it and open your document. Find the button that says “Compress” or similar and complete the process.


Android users can use the Adobe Acrobat Reader app. This app does cost, so you’ll need to consider if that’s something you want to pay for before downloading. If you do decide to go ahead, sign into your account and head to the “Files” menu. Load your document in the app and then select the three dots in the top right of your screen, and click “Compress PDF” to complete the action.

Becky is a freelance tech writer with over 8 years' experience writing for print and online. She is often found heavily caffeinated and accompanied by a laptop occupying local coffee shops, bars, co-working spaces and, frankly, anywhere she can get a strong cup of coffee. She enjoys collaborating on different projects ranging from tech to travel and everything in between!
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