If you work with multiple sets of PDF files or other documents every day, combining them into one larger document makes it easy to handle. PDF Merger apps can help you expedite this process with tools to merge, rearrange and compress the PDFs with ease.

Whether you want to merge PDFs online or offline, here are the best PDF merger apps to combine documents on the go.

1. Soda PDF

Soda PDF merger

Soda PDF is a full-fledged PDF management utility. Apart from the PDF merger capability, it also features the split, convert, edit, and compress options for your PDFs. It is available on the web and your computer running Windows and Mac.

The online merger utility offers basic functionalities. You can upload multiple PDFs, rearrange them through a drag and drop, and then download the file to your computer. You can also send the files by email or install the Google Drive extension to sync files.

The free online version is limited and ad-supported, but for occasional PDF merger tasks, it works quite well. Frequent users can opt for one of the premium plans to remove the limitations and access the additional set of tools.

Download: Soda PDF for Web, Windows, Mac, Android, iOS (Free, subscription available)

2. TinyWow

TinyWow Merge PDF

TinyWow allows you to merge PDF files quickly using a web-based UI. Simply select the PDF files you want to merge by adding or dragging them into the area, then click "Merge" to complete the process.

Once the file is ready, you can download it for free. After 15 minutes, all uploaded files will be deleted from the site, so no trace of your files will be found afterward.

Then, if you want to compress, protect, sign, add numbers, or rearrange your newly merged PDF file, you can easily do this by sending it to one of TinyWow's other tools with the click of a button.

Download: TinyWow for Web (Free, subscription available)

3. iLovePDF

iLovePDf merger

iLovePDF is another all-in-one PDF software with the PDF merger capability that you can also use as a PDF reader. It is also available on the web and major mobile and desktop platforms, including Windows, macOS, Android, and iOS.

iLovePDF’s desktop app resembles the design language of Adobe’s Acrobat DC. So, if you are planning to make a switch, you should feel at home.

Similar to Soda PDF, iLovePDF offers a similar set of features on paper but is more generous with its offerings. In addition to the usual PDF merger tool, you can upload files from Google Drive and Dropbox without additional requirements.

You can download merged documents locally or send them to your Google Drive and Dropbox accounts. You can also share download links, password protect documents, and more.

iLovePDF is available in the limited free version and a premium plan. The premium plan offers unlimited access to all PDF tools and document processing, multi-device support, advanced features, and customer support.

Download: iLovePDF for Web, Windows, macOS, Android, iOS (Free, subscription available)

4. PDF-Merge

PDF merger web only

PDF-Merge is an easy-to-use web-only PDF merger. It doesn’t come with the bells and whistles of the all-in-one PDF editors listed above, but only the document combine feature.

Using the tool is a straightforward process. You can drag and drop to add PDF documents to merge. Then, rearrange the order and click Merge PDF to combine the documents. Once done, download the merged PDF document to save it locally on your PC.

5. Smallpdf

smallpdf merger

Smallpdf is similar to other premium all-in-one PDF management utilities in many ways, but some. It comes with all the features you can expect from PDF software, including eSign and OCR, but most of them are behind a paywall.

You can use the web app to merge documents online or install the app on your Windows PC, Android, and iOS devices. Unfortunately, the macOS version wasn’t supported at the time of publishing.

The desktop app is intuitive and supports some additional PDF editing features. You can add text, annotate documents with pencil and marker and even insert images.

Merging PDF documents with Smallpdf is easy enough. Add all the files, rearrange the order, and continue to combine the files. You can download the merged document to your PC, Dropbox, or Google Drive. You can also save documents to Smallpdf’s cloud storage.

On the flip side, Smallpdf offers very limited free access with two free tasks daily. For unrestricted access, you will need to subscribe to its premium plan costing at $12/mo, which is expensive compared to other premium tools.

Download: Smallpdf for Web, Windows, Android, iOS (From $12/month, free trial available)

6. PDFConverter.com

PDf converter com

PDFConverter.com is an online PDF management utility. It has many PDF management utilities, including PDF to image and document format conversion, PDF compression, and PDF merging.

You can combine PDFs without signing up, and there is no purposed limit on merging tasks. You can upload documents from your local drive or link your Drop or Google Drive account to access your documents from the popular cloud storage accounts.

Once done, you can download the merged files to your local drive. However, it doesn’t have any option to rearrange the PDF files order. So, you will have to upload the documents in the intended page order you want them to appear in the final file.

7. PDFsam Basic

pdfsam basic pdf merger

If you are looking for a cost-effective solution that is also open-source, PDFsam Basic is an excellent PDF management software. It is a desktop-only application available on Windows, macOS, and Linux.

It features a simple user interface with a few PDF management options, including merge, split, mix, and extract. Additionally, you can split the document by size or bookmarks, as well as extract pages from PDF documents.

To combine documents, drag and drop the files, rearrange the document order, select a destination file, and click Run to merge the documents.

While a decent free alternative to other PDF merger apps, PDFsam is not the most intuitive app and lacks some advanced features in its free edition.

Download: PDFsam Basic for Windows, macOS, Linux (Free)

Best PDF Merger Apps to Work Online and Offline

While useful in a professional and academic setup, no major mobile and computer platform offer a built-in PDF merger feature. Third-party PDF merger apps offer a convenient way to store and move multiple sets of PDFs as one big document.

While we have focused on the PDF merger function of these apps, most of these are all-in-one PDF software that you can use to edit PDF files and perform document conversion. So, if you are looking for a full-fledged PDF editing suite, use the free trial and take the apps for a spin to see if it meets your requirements.