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The Best Free PDF Compressor Software

Before considering the What are The Best Free PDF Compressor Software, let’s listen to PDF?

What is PDF? Familiarity with the use of PDF

PDF stands for Portable Document Format, a standard file format developed by Adobe in 1990 to provide documents, and in this article, we want to introduce you to PDF files and the concept of PDF.

In 1990, the well-known business Adobe presented a format called PDF to crack two major problems:
The first need and problem were that users required a format that could be extended on different platforms such as Windows, etc., by simple software called PDF Reader.
The second need that occurs these days is to decode the problem of font clutter and page design. Using PDF also solves this problem.

PDF files do not only contain text, but you can also use photos, links, videos, interactive buttons, forms, and even 3D graphics in the PDF file. However, for some types of content, the software supposed to open the PDF file must have special capabilities. Support.

How to open a PDF file?

Because the PDF format is very popular and fully standardized, the number of applications for phones and tablets and Windows and Linux software that supports it is very large.

For example, most Internet browsers can open PDFs so that you can open files without the need for special PDF files.

Google Chrome browser, which has Windows, Linux, and macOS versions, can open PDF files by default without special plugins or settings.

Similarly, Microsoft’s Edge browser and Mozilla Foundation Firefox have this feature. Of course, you can change some browser settings to download and save PDF files available on sites instead of opening them directly.

Likewise, you can use browsers to unlock some PDFs.

If you have the PDF file on your computer, right-click on it and select Open Chrome, Google Chrome Browser, or Microsoft Edge.

You can use Adobe Acrobat Reader software to control the opened PDF better and use features such as taking notes and marking and highlighting parts of the PDF pages.

This software is completely free and has basic features for working with PDFs. It also has versions for Android and iOS and Windows, macOS‌ , and Linux.

Compress and Reduce PDF Files

Compressing and reducing the size of pdf files can be one of the hot topics these days as we are constantly sending and receiving PDF files to each other via social software or email.

For many people, the issue of sending a PDF file via email or social software arises, but sometimes in PDF files, due to the use of images and objects that have a large size, the size of your PDF file may be Too much. If your pdf file is too heavy, it will take a long time to load.

It does not matter what your goal is to reduce the size of your pdf, but you can do it simply because there are no complicated steps. In the following, we will discuss effective ways to reduce the size of pdf documents in Windows, reduce the size of PDF files in macOS, and compress PDFs in a web browser.

The Best Free PDF Compressor Software

  • Free PDF Compressor
  • Preview on Mac OS
  • Smallpdf Website
  • WinZip
  • 7-zip
  • WinRAR
  • PeaZip
  • Zip wire
  • Hamster Zip Archiver
  • NCH
  • NeeviaPDF
  • IrfanView
  • PDF Filter for Mac
  • PDF Squeezer for Mac

Use Free PDF Compressor software

By default, there is no pdf file management software in the Windows system, so you need an installer to open or compress pdf files. To do this, you can use the Free PDF Compressor software. This tool is very light and compresses PDF files with different qualities for you.

To do this, open the pdf file in Free PDF Compressor, and then you have to select the compression value. Now you can start working by clicking on the Compress option. You can see the mentioned steps in the picture below.

After completing the above steps and compressing the PDF file, your compressed PDF file will be saved in the same location as the original File with a different name.

PDF Compressor file size using the Preview app on Mac OS

If you want to compress a pdf file on your Mac and reduce the size of your PDF file on your Mac, you can use the default Preview app on your Mac and no longer need third-party tools or software to install. You do not have a pdf file compression on Mac. To use this tool, you must first select the desired File in the Finder, then press the Space key. In the section, you can click on the Open with Preview option to select the desired PDF file.

PDF Compressor online pdf size using the SmallPDF website

If you do not want to install additional software on your system to compress pdf files, you can use an online pdf compression tool or reduce the size of the online pdf file. You can use SmallPDF to do this. This SmallPDF tool is very simple and fast and does not share your File with anyone else. Also, your PDF file will be deleted from their server after one hour.

Now that you have selected the File you want to compress, the PDF Compressor process only takes seconds. Finally, you will be shown the compression rate, and the download link will be available to you.

PDF Compressor pdf size using the SmallPDF website

If you do not want to install additional software on your system to compress pdf files, you can use an online pdf compression tool or reduce the size of the online pdf file. You can use SmallPDF to do this.

This SmallPDF tool is very simple and fast and does not share your FileFileh with anyone else. Also, your PDF file will be deleted from their server after one hour. Now that you have selected the files you want to compress, the PDF compression process only takes seconds. Finally, you will be shown the compression rate, and the download link will be available to you.


It does not need to be introduced because it is one of the most popular file compression software many people use. You can compress, protect, share and decompress your files.

The software uses bank-level encryption and can connect to several cloud storage accounts such as Google Drive, OneDrive, and Dropbox. One of the prominent features of WinZip is ZipSend, which allows you to compress large files and send them as attachments in letters. However, one of the disadvantages of WinZip is that it is only compatible with the Windows platform.

WinZip is one of the best file compression software you can use because of its features and ease of use.

Supported formats: zip, tar, gzip, cab, rar, 7z, IMG, ISO, XZ, VHD, VMDK,


7-zip This is a popular open-source file compression program with a high compression ratio. If your priority is to compress files and keep file sizes to a minimum, 7-zip should be your ideal choice. Using 7-zip is free because it is open source. With strong AES-256 encryption and useful features such as integrated file manager, integration with Windows Shell, 7z auto-extraction capability, and FAR management plugin, 7-zip is widely used in the commercial and commercial sector. One of the advantages of 7-zip over other compression programs is that it is free to use.

Supported formats: Package / Open – 7z, XZ, BZIP2, GZIP, TAR, ZIP, WIM. Dump Only – AR, ARJ, CAB, CHM, CPIO, CramFS, DMG, EXT, FAT, GPT, HFS, IHEX, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, QCOW2, RAR, RPM, SquashFS, UDF UEFI, VDI, VHD, VMDK, WIM, XAR, Z.


WinRAR is another tool that many people use. Compressing multimedia files is recommended because it automatically selects the best compression method.

While other compression tools can only extract RAR files, WinRAR creates RAR files. You can batch files using the compression editor with its “Hard Box Archive” feature. In addition to 256-bit AES encryption, WinRAR also offers the ability to split archives into separate folders, repair broken archives, and support long filenames.

On the downside, the WinRAR interface is troublesome, especially for those new to the compression snapper. In addition, if you prefer to use the free trial version of the software, you will be constantly warned with pop-ups to buy the paid version.

Supported formats: RAR, CAB, ZIP, UUE, Z, ACE, ARJ, 7-ZIP, TAR.


PeaZip is the compression tool you should try if you’re dealing with ZIP files regularly. This free file compression software performs compression and archiving of files with maximum ease. PeaZip supports more than 150 formats and includes additional features such as encrypted password management, 2-step authentication, duplicate file search, archiving of multiple files, and archiving schedule.

PeaZip has many advanced features that you may need if you are compressing different files with limited resources.

Supported formats: 7z, Google Android apk, bz, bz2, bzip2, tbz2, tbz, gz, gzip, tgz, tpz, tar, zip, zipx, z01, smzip, arj, cab, chm, chi, chq, chw, Hxs, hxi, hxr, hxq, hxw, lit, cpio, deb, lzh, lha, rar, z, taz, tz, iso, java, pak, pk3, pk4, slp, xpi, wim, u3p, lzma86, Lzma, udf, xar, dmg Apple, hfs, part1, Split, swm, tpz, kmz, xz, txz, vhd, mslz, apm, mbr, fat, ntfs, exe, dll, sys, msi, msp, Open Office / Free Office (ods, ots, odm, oth, oxt, odb, odf, odg, otg, odp, otp, odt, ott), gnm, Microsoft Office (doc, dot, xls, xlt, ppt, pps, pot, docx, dotx, xlsx, xltx), Flash (swf, flv), quad, balz, bcm, zpaq, paq8f, paq8jd, paq8l, paq8o, lpaq1, lpaq5, lpaq8.


Zipware is another great file compression software for the Windows platform. It supports almost all major archive formats and easily manages small and large archive files.

With Zipware, you can create password-protected archive files, perform archiving operations directly from Windows Explorer, and convert popular archive formats to 7z and Zip. The program also allows you to split the archive into different folders according to your needs.

In addition, Zipware also has a password manager for storing and managing passwords.


Hamster Zip Archiver

Hamster Zip Archiver should be your ideal choice if you want easy-to-use file compression software as well as advanced compression. This free program supports all known formats. The dragging and dropping interface makes it easy even for beginners to compress the FileFile addition. Integration with cloud services such as Google Drive, Dropbox, and Yandex Disk makes it very easy popular among those who share zip files. However, Hamster Zip Archiver is only available for the Windows platform.

Supported formats: zip, 7z, arj, bz2, tbz, gzip, deb, dmg, img, gz, tgz, his, lzh, rmp, pkg, z, Taz, cab, iso, rar, tar, wim, swm, And jar.


Compressed Express File Compression from NCH software is an intuitive and efficient compression program.

Free version for home and regular users who can do daily compression tasks such as compressing and compressing files, compressing files to send emails, and opening compressed files in data archive formats such as RAR, TAR, 7Z, and CAB To do. You can use this software to compress and reduce the size of files that you want to share with your family and friends.

Supported formats: zip, .zipx, .rar, .tar, .tgz,. tar.gz, .gz, .gzip, .7z, .cab, .iso, .img, .dmg, .arj, .jar, .bz2, .tar.bz2, .tar.xz, .wim, .xz, .z and .bkz and. nco, .apk, .lzh, .pkpass, Multidisk (.zip.00x) and Multidisk (.7z.001).


If you want more control over the quality of your compressed PDFs, try DocuPub’s NeeviaPDF (for files smaller than 10 MB).

To make things easier, you can choose one of the presets, including low compression (for higher image quality) to high compression (for lower image quality). You will also be given the option to exclude specific elements from your PDF. These elements include forms, annotations, and page tags that unnecessarily increase file size.

How much of your original PDF elements you want to set aside depends on how much space you save.


IrfanView is a lightweight and feature-rich image display for Windows. Also IrfanView comes with several plugins that make it a versatile tool to convert images to different file types, add watermarks, and batch processing images. It also has PDF print quality, though not in the classic sense.

Before viewing PDF files with IrfanView, you need to have GhostScript installed.

Then, when you try to save your large PDF as a smaller PDF file, you will see a PDF Settings window next to the Save PDF AS  dialog. In the General section, you should probably set the Preview of PDF during save operation to not needed so that you can select the settings quickly. You can then adjust the compression settings as shown below.

PDF Filter for Mac

If you regularly update your Mac OS, you should be able to shrink your PDF without installing new apps. This is a great feature in OS X that many are unaware of.

First, open the PDF in the preview. This is usually done by double-clicking the FileFilet if you have a PDF reader like Adobe Reader, you can do it by right-clicking> Open With> Preview. Then, click FileFileport, and in the Quartz Filter drop-down box, select Reduce File Size.

PDF Squeezer

Aside from the simple process above, there are few options for Mac-free and popular PDF compression tools. If you want to control the output quality of your compressed PDFs, it is better to download an app like PDF Squeezer, which of course, includes a fee.

The Best Free online PDF compressor

So, in this focus, we have selected to convey some of the best websites that you can utilize to compress PDF files. Beneath, we will convey some of the most useful websites for PDF compression online. Most websites are free to use but support ads. So, let’s look at how to compress PDF files.

  • IlovePDF
  • Smallpdf
  • PDF2GO
  • SodaPDF



Excellent software for converting, processing, and editing your PDF files iLovePDF conveys jointly all the tools you require to work with PDFs

for convenience, including access, under one roof. Instead of being bombarded with all the tools without proper presentation, iLovePDF defines each action/task as a separate tool, just like Smallpdf. That way, you only have access to specific job-related options.

In terms of tasks, iLovePDF lets you convert, merge, split, edit, compress, watermark, unlock, protect, organize, repair, and sign PDFs with just a few clicks. Flexibility is another advantage of this PDF tool because it can be used online and offline without any restrictions.

The online version goes even further with the inclusion of cloud services (Dropbox and Google Drive) useful for importing, exporting, and sharing PDF files.

We all like to save time, which is why iLovePDF has a batch processing function that lets you work on multiple files at once.


With the Smallpdf Smallpdf service, you can do all kinds of things with your PDF file. This service provides a variety of capabilities to PDF files, such as converting PDF to Word, converting PDf to image, rotating the page, merging PDF files, converting other files to PDF format, reopening, and so on. Smallpdf Smallpdf will provide all the features of PDF format and will be very useful.

On the other hand, we should mention that this site has a simple function and high performance, and with just a few simple clicks, you can get rid of the problems of using PDF files and formats.

This editor is also available as a Chrome plugin that allows you to merge, separate, compress and convert PDF files directly from the browser.

The original version of the site had a standalone PDF compression tool. Since then, the online platform has introduced more than 16 PDF tools for converting, compressing, and editing PDF documents.

According to statistics from 2019, every month, more than 25 million users use Smallpdf Smallpdf.


This is one of the best online PDF compression tools you can use right now. You can quickly reduce the size of your PDF file using PDF2GO. The web tool offers you two different forms of compression – Basic and Strong. The base file gives medium and high quality, while large compression gives medium size and quality to the FileFileart from compression. PDF2GO can split, merge and convert PDF files.


Well, SodaPDF is by far the best online PDF compression tool you can use. Uses some advanced techniques to reduce the size of a PDF file without compromising its quality. It also has an advanced compressor option to adjust the compression level. This tool is free to use and is the best online PDF compressor tool you can use today.

Does compressing and reducing the size of pdf files reduce the quality of images and content?

It depends on the content and the tool you use to compress,

For example, if your FileFiletains all kinds of content (photos, videos, text, shapes), etc., some programs will reduce the size of images and videos as much as possible. But some only deal with the code of the PDF file and do not change the quality of the content in the FileFiler this reason, and it is better to use all the methods mentioned in this article and compress your FileFile the end, you can decide which one is better than the obtained files and review them.

Note: Also, in case of hardware problems, you can transfer your case and laptop to a computer company for repair, or by registering your problem in the online computer system, you can request help for on-site computer services.