Best Free PDF Readers You Need to Know About in 2021

While reading the blog post, you may have noticed that I was also a little preoccupied with the various PDF readers that are out there. I also wanted to highlight the best of them, to help you get the most out of your reading experience.

Just because you’re a tech junkie doesn’t mean you’re stuck with a clunky, outdated eReader. Here are the best free eReaders you should be using to read all your favorite eBooks.

Here are the best free PDF readers you need to know about in 2021.

The PDF has come a long way since it was first developed by Adobe back in 1993. Now, almost 30 years later, it still remains a largely popular document type. It’s versatile and can’t be easily edited. It also preserves the document’s integrity and formatting while enabling users to add non-text content and affix digital signatures.

Though editing or altering a PDF document may be challenging, our thorough guide on how to edit a PDF will help you make the most of it. We’ve also put up a list of the top free PDF editors to get you started. If you need to convert a PDF to Word, we offer tools that can assist you do it quickly and simply.

When it comes to the finest PDF reader, on the other hand, you must consider what you will use it for. We’ll go through the things you should look for and the finest options available.

When selecting a PDF reader, there are a few things to keep in mind.

The ease of use of the PDF reader, its security measures, and its capacity to generate and modify PDF files are all important considerations. A decent PDF reader has a user-friendly interface that makes it accessible and understandable to a wide range of users.

When it comes to generating or editing functions, you should look for features like stamping or watermarking, as well as the ability to input objects or pictures.

Additional functionality such as scanning and OCR capabilities, as well as compatibility for various device kinds, should be considered. Look for a software that can be used on tablets and smartphones as well as laptops and PCs.

Take price into account as well, particularly if you need more sophisticated capabilities that aren’t accessible in the free or trial editions.

The 5 Most Effective PDF Readers

PDF readers come in a variety of flavors, with some premium versions requiring a one-time payment or ongoing subscription. There are other free PDF readers with a range of helpful features if you’re searching for a more cost-effective alternative.

  1. Adobe Acrobat Reader DC is a program that allows you to view documents in Adobe A
  2. Nitro Reader is a program that allows you to read
  3. Slim PDF
  4. Foxit Reader is a program that allows you to read documents
  5. Preview

We’ve compiled a list of the top free PDF readers for Windows and MacOS to get you started.

1. Adobe Acrobat Reader DC is a program that allows you to view documents in Adobe A

Adobe Acrobat Reader DC is a popular PDF reader that allows you to view, print, sign, export, distribute, and annotate PDFs. It has a highlighter, text-to-speech capability, and the ability to make comments.

It’s compatible with a variety of PDF material, allowing it to open and interact with all kinds of PDF files. It can also open several big files at once and includes tabs for viewing or working on multiple files.

It works with a variety of operating systems and devices. It’s also compatible with Adobe Document Cloud services, allowing you to view your PDFs while on the move.


  • Simple to use
  • The user interface is simple.
  • Setup time is minimal.

⛔️ CONS:

  • The free edition has a limited set of features.
  • a big size

Nitro Reader (version 2)

Nitro Reader can generate, edit, annotate, convert, distribute, and sign PDFs in the same way as Adobe Acrobat Reader DC does. Its mode, which makes it perfect for reading eBooks, is one of the features that sets it apart from other PDF readers. Instead of scrolling over the pages, you may just flip across them.

nitro-reader image

It also includes a QuickSign function that encrypts signed documents using a password. Nitro offers solutions for both individual users and companies, based on the functionality required.


  • Interface that is easy to use
  • Most PDF viewers are compatible with it.
  • Document sharing that is safe

⛔️ CONS:

  • The free reader is just a demo version.

3. PDF with a small file size

Slim PDF, one of the finest free PDF readers, is a tiny software with a download size of just 15 MB, but don’t be fooled by its modest size. It still offers a lot of useful features that may help you get the most out of your PDF reading and editing sessions. You may use Slim PDF to open, read, search, print, magnify, and annotate PDF files, among other things.

slim-pdf image

Its most recent version has enhanced navigation to make PDF viewing more simple. It also includes sophisticated and customisable annotation features, as well as interactive form completion and signature verification.

It runs on Windows, Mac OS X, and Linux.


  • A new user interface with light and dark tones is now available.
  • Bloatware-free
  • Time to load is quick

⛔️ CONS:

  • Editing powers are limited.

Foxit Reader, version 4

Foxit Reader has a tiny footprint, yet it loads quickly and has a lot of features. It includes collaboration and sharing features in addition to basic tasks like viewing, annotating, filling out forms, and signing PDFs. It’s also compatible with online storage services like Dropbox and Google Drive.

foxit-reader image

With this PDF reader, you won’t have to worry about document security. It uses ConnectedPDF technology to let you give or deny document access, monitor document use, and maintain multiple copies of your PDFs. For businesses and other organizations, there is also an Enterprise version.


  • With Safe Reading mode, you can relax and enjoy your reading.
  • Creating PDFs is simple.
  • The interface is well-designed, with a toolbar similar to that of Microsoft Office.

⛔️ CONS:

  • It may be difficult to utilize.

5. Get a sneak peek

One of the finest free PDF readers for Mac users is Preview. It includes basic functions such as opening, viewing, and zooming in and out of PDFs and pictures. It also allows you to see information about PDFs and other pictures on your device.

preview image

Preview now supports filling out and signing forms for your Mac, password-protecting PDFs, and combining PDFs and transfer pages in its latest version for MacOS Big Sur. It also allows you to convert pictures to JPEG, PNG, and PSD file formats.


  • Streamlined user interface
  • MacOS has this feature built in.
  • Photo editing software is included.

⛔️ CONS:

  • Functionality is limited.
  • Only available to Mac users

Other PDF Readers that are Free

Other free PDF readers to consider include Google Drive and your web browser, in addition to the applications on our list.

Google Drive is available from virtually everywhere on the planet, but did you know that you can also use it to read PDFs and convert files to PDFs?

You can also save files from Chrome to your Drive, use Optical Character Recognition (OCR) to transform pictures and PDFs into searchable and editable documents, export documents to the PDF file format, scan documents, and annotate files, among other things.

You may also just use your web browser as a PDF reader. You may rotate, print, download, and zoom in and out of PDFs using your browser.

There are many free alternatives available, whether you want to read an eBook or generate a protected PDF for your company. We realize that selecting the best software for your needs may be difficult, therefore we suggest that you reevaluate your requirements carefully. Also, don’t be scared to download and try out the applications you’ve chosen to see which one is the greatest match for you.

It will no longer be difficult to answer the question, “What is the best PDF reader?” Choose from one of our choices to begin improving your papers.

PDFs are one of the most popular file formats on the internet, and have been for quite some time. PDFs are universal, which means every device on the internet can read them, and they’re easy to share with anyone. However, even though PDFs are incredibly useful, they have a couple of drawbacks. It’s hard to navigate a PDF using just a computer keyboard, and PDFs can be a hassle to create. That’s why there’s a demand for a better, more user-friendly way to read PDFs. However, there’s no simple answer for what that means. If you can’t tell, it’s a big topic to cover!. Read more about pdf viewer and let us know what you think.

Frequently Asked Questions

Which PDF reader is best?

The best PDF reader is Adobe Acrobat Reader.

Which PDF reader is best for Windows 10 free?

Microsoft Edge is the best PDF reader for Windows 10.

Is there a free PDF reader?

There is a free PDF reader called Adobe Acrobat Reader.

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