Best Tool to Merge PDFs in 2026: 9 Tools Compared

iLovePDF is the easiest merger for someone who just wants the job done. You upload files, drag pages into order, and download one combined PDF, with no manual to read first. The same account covers desktop and mobile apps, plus a full set of extra tools for compressing, splitting and converting PDFs.

The free tier handles occasional jobs well, but it limits how much processing you can do, and heavy users will hit the ceiling. Premium starts from $4 per month on annual billing, which is cheaper than most rivals for a full PDF toolkit. For most readers, iLovePDF is the safe default.

Smallpdf feels the most finished of the online tools. Its merge page shows clear page previews, reordering is smooth, and the result keeps formatting well across mixed documents. If you merge a contract, a scan and a report into one file, Smallpdf handles the mix without fuss.

The free tier is the catch. It allows only a small number of tasks per day, so anyone merging daily will need Pro at $10 per month on annual billing, or $15 month to month. That price buys a 7-day free trial and the full toolset, but occasional users should stick to the free tier or pick a freer rival.

Sejda suits the privacy conscious occasional user. You can merge without creating an account, and the service states short retention for uploaded files, which matters when documents contain personal details. The free plan covers 3 tasks per day with files up to 50 MB or 200 pages, which is enough for most one-off jobs.

Paid plans start from $7.50 per month on annual billing, and a $5 week pass covers short projects without a monthly commitment. Sejda is plainer than its polished rivals, but for a quick private merge it is one of the most honest free options available.

PDF24 Tools is the generous outlier. Its online merger is free with no daily limits, and the same company offers free desktop software for Windows that processes files locally. That combination removes the usual free tier anxiety, since you never hit a task cap in the middle of a job.

The interface is functional rather than beautiful, and the desktop app is Windows only, so Mac and Linux users stick to the browser tools. If you merge often and dislike paywalls, PDF24 Tools is the first free option to try, with PDFsam as the offline alternative below.

PDFsam Basic is the pick for sensitive files and batch work. Because it runs on your own computer, documents never leave your machine, which makes it the right choice for contracts, HR files and financial records. It merges whole files or selected page ranges, handles batches well, and costs nothing with no watermarks.

The interface is plain, and the most advanced extras live in the paid Enhanced version. For merging alone, though, Basic covers the job fully on every major desktop system. If privacy matters more than polish, start here.

Adobe Acrobat Pro is the professional standard, and merging is one small part of what it does. It combines files, edits text and images, adds signatures, redacts sensitive content and handles large complex documents with fewer errors than browser tools. A 7-day free trial lets you test it before paying.

The price is the reason most readers should not buy it for merging alone. At $19.99 per month on the annual plan billed monthly, it costs far more than iLovePDF or Smallpdf for the same merge. Buy Acrobat when your team already needs a full PDF suite, not when you only need to combine files.

Foxit PDF Editor gives teams a full PDF editor for less than Acrobat. It merges files, edits text, fills forms and handles signatures, with plans from $10.99 per user per month on annual billing and a perpetual license option for buyers who dislike subscriptions. A 14-day free trial covers the full feature set.

The interface is less polished than Acrobat in places, and a few advanced features still trail Adobe. For a team that edits PDFs daily but cannot justify Acrobat pricing, Foxit is the sensible middle ground, and merging works reliably inside it.

PDFgear is a useful middle option between limited free tiers and paid editors. Its core browser tools, including merging, are free without the tight daily caps that frustrate Smallpdf free users, and desktop apps cover Windows and Mac. Merging itself is straightforward, with page previews and reordering.

The trade off is brand size. PDFgear is smaller and newer than Adobe, iLovePDF or Smallpdf, so its support history is thinner. For everyday merging at no cost, that risk is small, and the lack of daily caps makes it worth trying if you merge several times a week.

PDF Candy rounds out the list as a simple free online merger. It combines files in a few clicks, offers a broad set of related tools, and caps free users at 10 tasks per day, which is more generous than Smallpdf but less than PDF24. The paid plan costs $6 per month for users who need higher limits.

File size limits apply on the free plan, so very large documents may need a desktop tool instead. For light to moderate browser use, PDF Candy is a dependable free choice, and its interface is friendlier than the fully free desktop options.