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Home / Blog / How to Reduce PDF File Size without Losing Quality | 7 Ways

How to Reduce PDF File Size without Losing Quality | 7 Ways

By Lena | Follow twitter | Updated on August 15, 2023 | Deutsch
Introduction:
How to reduce PDF file size without losing quality is a frequently asked question. We need to compress the PDF to make it easier to manage and share. Here in this guide, I’ll tell you all the possible ways that can help you reduce PDF size without losing quality.
summary

Reducing PDF file size is not just about compressing the file, we need to make sure that its quality doesn't get damaged in any way. If the quality is compromised, then the file will lose its value. Therefore, finding the right compression method is crucial. Just read on to see how to reduce PDF file size without losing quality. Whether you want to use a PDF size reducer or not, you'll find a way to do it here!

How to Reduce PDF File Size without Losing Quality on PC

A quick way to reduce the size of a PDF file is to compress it. A professional tool is able to compress PDF files without losing quality. Here, we take Adobe Acrobat and SwifDoo PDF as examples to show you how to reduce PDF file size without losing quality.

Reduce PDF Size without Losing Quality - Adobe Acrobat

Adobe Acrobat is one well-known PDF editor that can help users easily handle PDF files. It provides two options to help you reduce PDF file size without losing quality. However, you may need to subscribe to its pro version to enjoy the features.

Compress PDF

1. Open your PDF with Adobe Acrobat Pro DC.

2. Click File in the upper left corner.

3. Choose Save as Other > Click Reduced Size PDF...

Reduce PDF Size via Adobe Acrobat

4. On the pop-up window, adjust the settings and click OK.

Optimize PDF

Adobe Acrobat also allows you to compress specific content to reduce PDF size.

1. Open the file with the tool.

2. Click Tools next to Home > Choose Optimize PDF.

3. Choose Advanced Optimization. Then you can adjust the image quality, remove unwanted objects, and much more.

4. Click OK to save your changes.

Reduce PDF Size via Adobe Acrobat

Note: If you want to know how much space each element takes up in the file, just click Audit Space Usage in the upper right corner. In this way, you should know what you need to do to reduce the size of the PDF.

Reduce PDF Size without Losing Quality - SwifDoo PDF

SwifDoo PDF is another easy-to-use tool that can help you reduce PFD file size without losing quality. With this tool, you can quickly compress PDF files to the size you need.

  • Customized Compression Level. There are 3 compression levels for you to choose from - Low, Medium High. In addition, you can adjust the quality of the images in the file.
  • Batch Compression. To save your time and energy, SwifDoo allows you to batch compress multiple PDF files at one time.

You can click the download button to get SwifDoo PDF and follow the steps below to reduce PDF file size in minutes.

1. Open SwifDoo PDF > Click Compress PDF.

Compress PDF  via SwifDoo

2. Select Add Files to select the PDF you want to compress.

3. Select the compression level and click Start.

Compress PDF  via SwifDoo

As you can see, with the user-friendly interface, you can easily find the tools you need. During the trial period, you can try out all the features, including compression, editing, annotation, page management, password protection, etc.

How to Resize A PDF Image | 4 Proven Methods

How to Resize A PDF Image | 4 Proven Methods

This guide will tell you how to resize a PDF image. Whether you want to make it online or offline, you will find a way to do it here.

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How to Reduce PDF File Size without Losing Quality on Mac

On a Mac computer, you can also use Adobe Acrobat to compress your PDF file size. However, as mentioned earlier, it requires a license. Actually, one built-in program called Preview is able to help you reduce PDF size without losing quality.

Preview is designed to help Mac users view images and PDF files. In addition, it also allows you to do some simple editing to the file. Below are the steps to compress a PDF file.

1. Right-click the PDF file and choose Open With > Select Preview to open the file.

2. Click File from the toolbar and then choose Export.

3. On the pop-up box, click the drop-down menu next to Quartz Filter.

4. Select Reduce File Size and click Save to make it.

Reduce PDF Size on Mac

How to Reduce PDF File Size without Losing Quality Online

Do not want to install any application on computer? Then the online tool can be the best way to reduce PDF file size without losing quality. There are many online tools that can help you compress PDF online, such as iLovePDF, Soda PDF, PDF Compressor, SmallPDF, PDF2Go, etc. You can visit the site of the tool and start the compression.

1. Open a browser and go to one online tool you prefer like iLovePDF.

2. Choose Compress PDF > Then click Select PDF files to upload your file.

3. Choose the compression level and click Compress PDF to start.

Reduce PDF Size Online

Other Tips to Reduce PDF File Size without Losing Quality

Here are 3 other practical methods you can try to reduce PDF file size.

Compress Images

Pictures can take up a lot of space, especially high-resolution ones. You can try to reduce the size of the image and thus reduce the PDF size. This operation has little or no effect on the quality of the PDF.

  • First of all, you can replace png images with jpg images as they tend to have smaller file size.
  • Then, you can use an image compression tool like TingPNG to compress the image. This online tool can help you compress multiple images at one time.

Compress Images via TingPNG

Use “Save As”

When you make changes to a PDF file, you can click Save or Save as to save the document. The "Save As" command will generate a fresh file, while the "Save" feature will integrate any modifications made into the original document. In short, clicking "Save" repeatedly results in a larger file size. However, by using "Save As", the editor can generate a fresh and optimized file.

Remove Unnecessary Objects

Another way to reduce PDF size without losing quality is to delete unnecessary content, such as images, embedded fonts, metadata, or even pages.

Final Words

That’s all about how to reduce PDF file size without losing quality. You can choose to use a desktop application or an online tool to compress PDF files depending on your needs. Note that uploading files to the web runs the risk of being compromised. For important files, the offline line PDF tool is a better choice. In addition, these tools also offer more features to meet your needs.

SwifDoo PDF
  • Compress PDF file size without losing quality
  • Modify, add, delete or replace text/image with a single click
  • More than a dozen annotation tools to make PDF attractive
Free Download
Windows 11/10/8.1/7/XP

Lena has been in the editing industry for 8 years. She is familiar with a variety of products that can make things easier, such as PDF tools, video recording software, iOS location changer, etc. She enjoys sharing her knowledge with users to help them solve problems in their work and life. In her spare time, she likes to play with her cat.

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