How to Compress PDF Online for Free and Save Up to 80% of Space

Online PDF compression is an excellent solution. It doesn’t require buying and installing software, saving you time and money.

It’s the easiest and cheapest solution for us to visit the website and compress PDF online for free.

It benefits you as a student, professional, or user who wishes to organize their files. It’s a free and straightforward procedure.

In this article, we will show a step-by-step guideline to compress PDF online and reduce the file size by up to 80%.

By this end, you’ll know how to manage your PDFs better. It will make storing and sending them easier.

How Does PDF Compression Work? 

PDF file compression differs from image compression.

That’s because PDF files contain both text and images. Thus, the PDF compressor tools combine diverse techniques to compress PDF files.

Let’s look at some fundamental PDF compression methods,

Image Compression: Image compression is one of the most common methods for compressing PDF files is image compression. JPEG compression or the JPEG 2000 compression algorithms preserve both image quality and data size.

Text and Font Optimization: Another method for reducing redundant text and font data is text and font optimization. It optimizes character and font representation. Content replication reduction efficiently detects and stores repeated elements to minimize redundancy.

Object Structuring: Object structuring involves rearranging internal elements while resolution reduction decreases excessively high image resolutions. Users can often choose different compression levels, trading off file size for a slight loss in quality.

LZW compression: The greedy LZW compression method uses data string sequences repeatedly to make shorter dictionary codes. It compresses and optimizes the data.

lzw pdf compression algorithm to compress pdf online
LZW Compression

Font Subsetting: Font subsetting reduces font data by including only documentation characters. Some compressors use standard zip compression algorithms to compress the entire PDF. It reduces redundant data.

PDF compression attempts to strike a balance between achieving smaller file sizes and achieving higher quality. Also, the compression methods depend on document content and user needs.

Compress PDF Online Using ShortPixel Free PDF Compressor

ShortPixel online PDF compressor is one of the best in the business when compressing PDF files online. It allows you to compress PDF files with just a few clicks.

ShortPixel’s online PDF compressor simplifies PDF compression. Its intelligent algorithm can reduce file sizes by up to 90%, saving up to 80% of space.

Here’s how to do it;

Step 1: Open the ShortPixel PDF Compressor 

Navigate to the ShortPixel PDF compression tool in your browser.

Step 2: Choose the PDF Compression Level 

Now, choose the compression level according to your requirements. ShortPixel’s online PDF compressor allows you to select from three compression levels: lossy, glossy, and lossless.

  • Lossy compresses PDFs to the smallest size but reduces little quality. 
  • Glossy for high-quality PDFs with slight quality loss. 
  • Choose lossless compression to preserve 100% PDF quality.
compress PDF online using Shortpixel Image compression plugin.

Step 3: Upload the PDF File and Compress

Upload your PDF to ShortPixel’s online PDF compressor. You can also drop the PDF file into the ShortPixel PDF compressor.

ShortPixel allows you to upload up to 50 PDF files at once, with a file size limit of 10 MB. 

When the files are compressed, you will see the compression percentage and download sign, and you can download them individually or all at once.

compress PDF online using Shortpixel PDF compression plugin.

Following these steps will allow you to compress PDF online using the Shortpixel PDF optimizer tool.

The Benefits of Compressing PDF File Size?

PDF file compression has numerous advantages, from increased storage efficiency to time savings. These advantages inspire users to compress and use PDF files, whether online or offline. 

Let’s take a look at the top benefits of PDF compression.

File Portability: Small PDF files take less space and are easy to carry and transfer. Likewise, it takes less time to email a small PDF. Plus, compressed PDFs are great for portable storage devices like USB drives.

Storage Efficiency: PDF compression saves storage space by reducing file sizes. It simplifies your local drive or online drive storage optimization. So it takes less storage and takes less time to upload and download. Compressing PDF files greatly helps cloud service users with limited storage.

User Experience: PDF compression simplifies and speeds up user tasks. Compressed PDFs load quickly online. Sharing or downloading compressed PDFs saves you time and internet data. Working with compressed PDFs is easy and speeds things up. It improves user satisfaction and productivity.

Online Loading: Online PDF sharing is faster and easier with PDF compression. Reducing PDF file sizes speeds up uploads and downloads. It becomes lightweight for online loading and cloud document sharing. So, sharing or downloading PDFs from a website is easier and faster with compressed PDFs!

Compress Other File Formats

The ShortPixel online compressor tool lets you compress PDF and other files online, including JPG, PNG, GIF, and WEBP.

If you need to compress some images, here’s how to use the ShortPixel online compression tool to compress all these file types.

Step 1: Open the ShortPixel Online Compression Tool 

To start compressing your preferred file type, open the ShortPixel online compression tool in your web browser.

Step 2: Select the Compression Level 

Select your preferred level of compression. The online compression tool ShortPixel offers three options: Lossy, Glossy, and Lossless.

If you want small files, choose Lossy. If you’re willing to sacrifice page speed for quality, choose Glossy. If file quality is essential, choose Lossless.

Step 3: Upload Your Preferred File Types and Compress

Upload your preferred file type to ShortPixel’s online compressor by dragging and dropping it into the ShortPixel compressing tool.

You can upload up to 50 files at once, each with a maximum size of 10 MB.

Use ShortPixel for Flexible Online PDF Compression

Compressing PDFs improves usage by making them portable and shareable online. ShortPixel’s online PDF compressor makes compressing PDF files easy.

Besides, the online PDF compression tool is not limited to PDFs; it can also compress popular image files such as JPG, PNG, GIF, and WEBP. 

ShortPixel’s online compression tool is your go-to for all compression needs. It’s simple, powerful, and efficient for handling PDFs and various image formats.

Zadhid Powell
Zadhid Powell

Zadhid Powell is a Computer Engineer turned into a professional writer. Alongside, he's a B2B Marketer, Tech Writer, SaaS expert, Fintech ace, Data Science, ML, AI follower, and WordPress lover. Often you may find him rocking downtown clubs with his guitar or diving deep sea.

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