How to Reduce PDF Size Using 5 Simple Methods?

  Kanishka Vohra
Written By Kanishka Vohra
Anuraag Singh
Approved By Anuraag Singh
Modified On December 1st, 2025
Reading Time 9 Min Read

Have you addressed the disturbing messages like “PDF file size is too large or not recommended” when uploading to email or any other platform? Large PDF files can have adverse consequences, especially slowing down the workflow and consuming storage space. To organize PDF files, you might seek how to reduce PDF size without losing the quality or layout. In the following guide, we will share the right tools or techniques for compressing oversized PDF files. This way, professionals can effortlessly upload, store, or manage the documents with ease. So, let’s dive into it.

What to Do If a PDF Document is Large?

The size of a PDF document depends on various factors. Moreover, the issue of “Too Large” stops you from managing the documents. To manage large files, you need to reduce or compress the PDF size without losing quality. There are several tools or methods to shrink PDF file size. Before applying the techniques, let’s first understand the common reasons that cause your PDF file to be bigger in size.

Why PDF Files Become Too Big in Size?

PDFs are among the simplest and favored document formats for everyone. Whether it’s content or layout, PDFs are always rewarded for managing structure, including fonts, metadata, and other elements.

Besides the benefits, some factors turn PDF into a larger size. Hence, you might struggle when sharing or uploading the document. The common cause includes rich media, high-quality pictures, and more. Now, let’s break down the reasons for “why my PDF file is too large”:

  • High-Resolution or Quality Images: PDF files support multimedia content, including images and scanned pictures. Embedding high-resolution images increases the PDF’s file size. Hence, users need to compress the images to reduce the document size efficiently. It is among the main reasons for making PDFs larger in size.
  • Embedded or Modern Fonts: After the images, embedded fonts are another factor that contributes to increasing the PDF size. Professionals often use modern or large fonts to represent the data with clarity. Unfortunately, the embedded fonts increase the size and often look unprofessional when opening the document on different devices or PC.
  • PDF Rich Media Content: Multimedia content, such as videos, audio, and attached files, is often used to create interactive PDFs. This inline content increases the PDF size. In other words, users need to strip out all this content to compress the PDF file size without harming the other data during the process.
  • Print to PDF Feature: Many professionals use the wrong option when creating a PDF document. In other words, it is essential to optimize for accessing the standard PDF document. If you use the “Print to PDF” feature, this won’t shrink the PDF size. Therefore, it is crucial to select the right feature to optimize the PDF file size.
  • PDF Graphics or Redundant Data: Whether it’s PPT or research documents, professionals use solid objects or graphics. This gradually increases the file size, making it difficult to manage the document. Instead, use simple objects or colors to reduce the size of the PDF in space.

Overall, these are the reasons for increasing the PDF file size. Here, shrinking the PDF size offers several benefits. Firstly, users can effortlessly upload or share PDFs over websites, via email, or on other devices. Secondly, it lets users streamline or store the PDF document without compromising the inline content. Now, let’s find out the best ways to decrease PDF size.

How to Reduce PDF Size in One Click?

  1. Start by downloading SysTools PDF Toolbox Utility on your machine.
  2. From the dashboard, pick the Compress feature.
  3. To upload the large PDFs, use the “Add Files or Folder” feature instantly.
  4. After this, tab the Browse option to set the path for the resultant PDF > Next.
  5. Use the Advanced Settings to optimize the quality of the images and press the Next button.
  6. Lastly, use the Start button to shrink PDF size instantly.

Free Download Purchase Now

How to Shrink PDF File Size – 5 Best Ways

Large PDF files present challenges when uploading them to any platform. Many users, including professionals or business users, visit communities like Reddit to find out the techniques to compress PDF file size. In the following section, we will list both free and advanced tools for compressing PDF documents to improve performance or accessibility. Here are the methods on how to reduce file size of PDF:

  • Free Online PDF Websites to Reduce PDF Size
  • Adobe Acrobat Pro Software to Compress PDFs
  • Convert the Large PDFs into Parts
  • Remove the Unwanted Multimedia Content
  • SysTools PDF Pro Utility to Manage Files

Now, let’s examine these methods individually.

#1 How to Reduce PDF Size Using Free PDF Websites

Many free online websites are gaining popularity for reducing PDF sizes in seconds. Using these platforms, users can effortlessly compress the size without affecting the quality. Without software installation or file restrictions, online tools are useful for everyone, including beginner users.

Moreover, it offers benefits like batch processing and instant reduction of PDF size. Additionally, the interface is straightforward, making the experience hassle-free. Here are the necessary steps to reduce the size of a PDF using online tools:

  1. Firstly, visit any online free PDF sites.
  2. Use the Drop feature to upload big PDFs.
  3. Finally, reduce the size and download the file.
Pros: Simple and quick tools without the requirement of software installation or dependency on third-party tools.
Cons: Online tools aren’t trustworthy, especially if the data is sensitive. Moreover, experts do not recommend using free websites to reduce PDF files. Additionally, many platforms encounter issues with large files and their impact on quality.

#2 How to Shrink PDF File Size – Try Adobe Acrobat Utility

After exploring online tools, if you’re looking for a desktop-based solution, consider Adobe Acrobat software for effectively reducing PDF file size. This is an advanced and cutting-edge utility for compressing PDFs without compromising original quality.

Moreover, the software can handle large PDF files up to 2 GB. Using this robust utility, users can optimize the PDFs and access the smaller files. Hence, it is an all-in-one and secure solution for reducing the PDF size while keeping he data intact. Here are the common steps to decrease PDF size using Acrobat:

  1. Firstly, download or run Adobe Acrobat Utility.
  2. Tab Tools and look for Optimize PDF (or similar option, i.e., Reduce File Size).
  3. Pick the PDF file and then click Reduce.
  4. Now, use the OK and then the Save feature to download the file.
Pros: Adobe Acrobat is trusted and recommended by professionals for shrinking the PDF size. It offers advanced features that meet your industrial standards.
Cons: This is not a free utility; instead, it is priced as a premium service. Moreover, the cost of this tool won’t fit for individual or small business workers. Therefore, consider alternative solutions to reduce the PDF size.

#3 Convert the Large PDFs into Parts for Compressing Size

If you’re wondering how to compress PDF size, use SysTools PDF Splitter, developed for Windows or macOS. This is the ultimate technique for reducing the size of a PDF file. In other words, the tool allows you to convert the big PDFs into smaller ones.

Moreover, the software offers various features to break PDFs by size, page range, MB, and more. Additionally, it is a secure and standard method for accessing compressed PDF files. So, download the software and create the reduced PDF files without compromising quality.

#4 How to Reduce the Size of a PDF File – Delete Multimedia Content

Whether it’s pictures, videos, or audio, all these contents increase the size of your PDF file. To shrink PDF size, it is necessary to delete the unwanted high-resolution images or rich media content. Try SysTools PDF Media Remover. This is another software for optimizing the PDF file size. In other words, it enables you to remove unwanted media content from PDF files.

Moreover, the software allows you to delete rich media, like high-quality images, videos, SWF content, audio, and even attached files. This way, professionals can download the text-focused PDF document. Additionally, it is the most effective way to reduce file size while removing unnecessary PDF media.

#5 How to Shrink the Size of a PDF Document – Try Professional Utility

If you’re seeking how to reduce the size of a PDF, download SysTools PDF Pro Tool. This is an ideal standalone software solution for reducing the size of PDF files without compromising file integrity. Moreover, the tool offers various features for reducing the PDF size in batch mode.

Compared to other tools, this software is rewarded due to its cost-effectiveness and navigational interface. Using this tool, users can select a page range to shrink the size of specific pages. Additionally, it allows you to optimize pictures. So, download this robust utility on Windows OS for reducing PDF size.

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Stepwise Guide to Compress PDF File Size

  1. Download and run the SysTools mentioned utility on your machine.
    download pro tool
  2. Once the tool is opened, click the Compress feature.
    tab compress option to reduce pdf size
  3. Use the “Add Files or Folders” option for accessing large PDFs.
    tab add files to upload pdf
  4. To set the location > tab Change feature.
    click browse to set the path
  5. Finally, press the Next and Start buttons to begin the process.
  6. After this, download the reduced PDF document.

Final Words

In the above guide, we have shared 5 ways on how to reduce PDF size. Using this stepwise guide, users can optimize the PDF file size. Among all the methods, SysTools recommended software is the best and trusted solution for shrinking the document size in batch mode.