10 Best PDF Merger Tools for 2025

Portable Document Format or PDF is an integral part of life in the modern days where any knowledge can be instance throughout life and the major means of communication is also done electronically. PDF documents are common because the files formatted in this format are displayed similarly on different computers and applications due to the fonts and applications used to create them. This feature alone makes PDFs suitable for sharing documents across different platforms and devices. However, the management of these PDFs can sometimes be complicated particularly when working with the number of files. It is here that PDF merger tools are most helpful.

These tools include merging of several PDF files into one, accessing of files with ease, organizing of files and papers, and eventually, de-cluttering of working surfaces. Joining PDFs is an everyday event in many sectors due to the integration of vast amounts of information in various areas, including legal and academic research.

Using Free PDF merger, working professionals can enhance the structure of documents making it easier to search and share lots of information all at once. Besides, they provide some extra options like splitting, compressing, and editing PDFs, which makes those tools even more useful. Based on these advantages, there is the need to obtain the most appropriate PDF merger tool for society.

Criteria for Choosing the Best PDF Merger Tools

When selecting the best PDF merger tools, one should consider the following criteria:

• User-friendliness: It should not require considerable knowledge of handling tools, thus, the tool we are to develop should be user friendly. None of this should stand in the way of a smooth interaction with the user interface, the goal being to avoid confusion and delay the task at hand.
• Features: As with any good PDF converter, the tool should not be limited to the basic functionality of the merge option; it should include such options as splitting, compressing, and editing PDFs. User friendly interface, compatibility to different file types and formats are also plus points.
• Security: The final consideration to be discussed here is that any data which is sensitive should be protected and this should be possible by security being put in place using the tool.
• Platform compatibility: It should be compatible with such devices as Windows, macOS, web applications, and mobile devices for it will suit those with any device.
• Price: The cost of the tool can be analyzed based on the cost which the user is willing to bear in addition to the usefulness of the tool. some of these tools have limited and enabled options that are free while others are paid with extra features.

Quick Comparison of PDF Merger Tools

Side-by-side comparison of all tools based on features, pricing, and compatibility.

10 Best PDF Merger Tools for 2025

Here is our expert’s opinion about the best pdf merger tools for all the professionals working from home and office settings in extraordinary words.

1. Adobe Acrobat – Most Trusted PDF Merger

There is Adobe Acrobat which is one of the best PDF merger tools produced by the well-known company Adobe. The following are some of the unique features that make this tool very suitable for use by professionals and businesses. It is integrated with tools for creating a new PDF by combining multiple documents, editing PDFs, and securing them with a password as well as converting your PDF documents into other formats using Adobe Acrobat. The platform is easy to use and navigate through even though it has an interface that does not require computer proficiency.

Key Features:

• Notational and manipulative extensions for PDF.
• Document protection and sharing.
• Integration with different file format.

Pros:

• Robust and feature rich.
• Industry-leading software.
• Translated as, timely updates and support.

Cons:

• Climbing the ladder steep for a layman.
• Pricing is a little higher than other tools in the market.

Pricing:

• Free online tool available for registered users.
• The cost is $ 12.99 per month.

2. Smallpdf – Reliable PDF Merging Tool

Smallpdf is one of the most widely used websites that helps users to merge one or more PDFs together and it offers so many options. This tool enables you to merge several documents into a single PDF, split PDF documents into different documents, compress large PDF documents and edit PDF files. Smallpdf another advantage is that you can operate in that mode in safe mode i.e your files are safe during operation. An incredible feature is that it is available online, which means that you can use it on any device that is web enabled.

Key Features:

• Clearly organized design of the interface.
• The PDF functions available include merging and splitting of PDFs.
• Compress and eSign tools.

Pros:

• Accessible via web browser.
• The user interface is available in two modes, basic and premium versions.
• Secure file protection.

Cons:

• Restricted features in the basic, or free version.
• Other users may consider the free version as limited.

Pricing:

• Has a free version which is owing to it only having some less features.
• Pro version: At $9 per user per month, billed annually.

3. ILovePDF – Best Online PDF Merger Tool

ILovePDF is one of the universally appreciated and easy to use web applications, which enable users to merge, split, and compress .pdf files. That’s why it is best suited to handle many files at once, and of course, the most appropriate choice for people working in bulk.

Key Features:

• It is an online tool so that accessibility is not an issue.
• For large scale processing of data.
• Merging and splitting.

Pros:

• Organized and easy to use.
• PDF tools – A complete list of tools.
• Bulk processing saves time.

Cons:

• May experience small website outages occasionally.
• Poor customer services available.

Pricing:

• The free version is available with limited functionality.
• Premium version: $6 per month.

4. PDFsam Basic – Free PDF Converter Online

PDFsam Basic is used for merging and splitting of PDF files, which is open source and costs nothing to use. Because of its straightforward design and convenience, it can be employed by both individuals for everyday office and business purposes.

Key Features:

• Merging and splitting PDFs.
• Open-source and free to use.
• Supports Windows, macOS and Linux OS.

Pros:

• Free to use.
• Simple and straightforward.
• User-friendly interface.
• Regular updates.

Cons:

• Fewer features compared to most of the paid tools.
• May slow down during big file consolidations.

Pricing:

• Free to use.

5. PDFelement – Combine PDFs into One

Including features such as OCR ability, Security feature, Convert, download options, all these features are available at a comparatively cheap price which makes PDFelement the ultimate professional tool. The program can be distinguished by the important level of the editing function which makes it good for working in documents significantly.

It is useful to have the ability to cut, copy, paste, select, undo, and redo, delete, bold, underline and italicize, change the font size and format, align and order texts, as well as insert pictures.

Key Features:

• Combining, dividing, and joining PDFs.
• OCR functionality in PDF.

Pros:

• Affordable – compared to the functions it offers.
• User-friendly interface.
• Extensive editing tools.

Cons:

• Some of the functionalities may be complex and call for a user to spend a lot of time to understand them.
• May be overbearing for user requirements of average users.

Pricing:

• Free version available to download.
• PDFelement Pro: $79.88 for a lifetime license

6. Sejda PDF – Combine Multiple PDFs

Sejda PDF is an all-purpose program that can be used at home and in undertaking different business activities. It has canned functionality with online web functionality, along with offline desktop apps to run the functionality.

Key Features:

• Merging two PDFs.
• Splitting a single PDF into multiple PDFs.
• Combining two or more PDFs into one.
• Secure file deletion.

Pros:

• Web-based and having a local application version.
• A wide range of feature set.
• Data erasing for personal information.

Cons:

• The interface is not as modern as those of some competitors.
• Some of the features are added only to the paid part of the software and are unavailable for use in the free version.

Pricing:

• There is a free version which has some restrictions.
• Pro version: $7.50 per user per month.

7. Foxit PDF Editor – Safe and Secure Tool

Some of the remarkable features hence include Foxit PDF Editor is the best free PDF editor especially for the enterprises due to its small size and speed. It is considered fast and simple to use, which explains why most businesses and individuals prefer it.

Key Features:

• Lightweight and fast.
• PDF merging, PDF splitting and PDF editing.
• Suitable for enterprises.

Pros:

• Fastest form of performance.
• User-friendly interface.
• Ideal for enterprise use.

Cons:

• Might not possess some of the special tools that are available on other tools.
• Almost regular performance problem when dealing with extremely large files.

Pricing:

• Free trial available.
• Foxit PDF Editor: $14.99 per month.

8. PDF Converter – Best Solution to Combine PDFs

PDF Converter is an all-in-one solution software for managing PDF needs ranging from merging PDF files to converting them. For example, there is a functionality for mobile’ devices that make it easy to use the application from any place.

Key Features:

• Easy to use, compatibility, and several features.
• Versatile to use.
• Merging and converting PDFs.
• Mobile-friendly.

Pros:

• Extensive range of features.
• Mobile-friendly.
• Affordable pricing.

Cons:

• The user may get confused with the number of options available for her on the interface.
• Some of them may take some time to learn or may be a little complex for other users.

Pricing:

• Free to use with a limited benefits.
• PDF Converter Pro: $6 per month.

9. Soda PDF – Secure PDF Merger Tool

Soda PDF is also an online tool, and as such is compatible with all the major operating systems, which lends it to teamwork. It lacks the complicated graphic interface which may cause difficulties and has all the necessary functions and is commonly used by the customers.

Key Features:

• Cloud-based functionality.
• Sustainability and accessibility of the product across platforms.
• Large number of PDF tools.

Pros:

• User-friendly interface.
• Appropriate for working with a group.

Cons:

• Certain functions can only be accessed if the app user obtains a paid subscription.
• Delayed loading is something that is experienced rarely.

Pricing:

• Soda PDF Online: Free to use with a limited functionality.
• Soda PDF Desktop: $10 per month.

10. Combine PDF – Free PDF Merger

Merge PDF is a convenient and free service for joining PDF as fast and without any difficulties. In short, this is the ideal resource for anyone who just needs a straight forward merge tool but has nothing to write home about.

Key Features:

• Completely free online tool.
• Clean and straight-forward design.
• Merging PDFs only.

Pros:

• Completely free.
• Simple and efficient.
• Quick and easy mergers.

Cons:

• It also has fewer features when compared to other tools.
• No details in terms of whether a desktop and or mobile applaunuyen0 is available.

Pricing:

• Free to use.

Free vs. Paid PDF Merger Tools

It is also necessary to delve into the differences between the freeware and the paid solutions when selecting the PDF merger. Moreover, you also must know that, for casual users who don’t need a lot of features from their application, there are a lot of free tools out there. Thus, free tools often lack such characteristics as a wide set of functions, high productivity, and reliable data protection means.

The paid tools are more comprehensive, faster and will have an added security option compared to the free tools. On the other hand, it may be used by a professional or a company who will work more closely with PDFs.

So, it’s clear that you shouldn’t choose either tool, you should compare the free version PDF merger tools to paid one so that you can choose one that is suitable for you, depending on what you want and willing to pay.

Conclusion

There is a great selection of high-quality applications in the market that can merge PDF files. There is a free version of the tool as well as a paid one so you can always find one that fits your needs. When using a PDF merger, there are advantages and disadvantages of each of the tools, the number of features that are needed, and the pricing structure to consider.

Moreover, it is possible to compare free and paid tools available on the market to decide which option will be suitable for the organization. When using the right tool, you should not struggle in merging several of your PDF files to make it easier to search, share or manage your documents.

FAQs

What is the best free PDF merger tool?

PDFsam Basic and Combine PDF are excellent free options for merging PDFs.

Can I merge PDFs without losing quality?

Yes, most tools maintain the original quality of PDFs when merging.

Are online PDF tools secure to use?

Reputable tools like Smallpdf and ILovePDF ensure data security. However, avoid uploading sensitive files.

Is there a limit to the number of PDFs I can merge?

Free tools often have limits, but paid versions usually support unlimited mergers.