Best PDF Compression Services in 2026: 8 Services Compared

PDF24 is our pick for most people because compression is free, without a daily task limit that blocks occasional use. Upload a PDF, choose a compression level, download the smaller file, and you are done. The desktop Creator app offers the same tools offline, which helps for larger files or slower connections.

The trade-off is polish. PDF24 is ad supported and its interface feels practical rather than premium. For pure compression, that does not matter. If you need a full business PDF suite with signing, forms, and team features, a paid tool will serve you better. For shrinking PDFs for email, upload, or school, PDF24 is hard to beat on price.

Smallpdf suits people who compress PDFs as part of wider document work. Beyond compression, it covers conversion, merging, splitting, editing, signing, and protection in one clean interface. Integration with Google Workspace and Dropbox makes it easy to pull a file from cloud storage, compress it, and save it back.

The free plan limits you to a small number of tasks per day, commonly two, which is enough for occasional use but not for daily work. Pro removes those limits and adds batch processing and stronger tools. Files are uploaded to Smallpdf servers and deleted after about an hour, according to the vendor. For regular use, Smallpdf is a polished, reliable choice.

iLovePDF is a strong alternative to Smallpdf, with a similar full toolkit and a free tier that many users find more generous for occasional tasks. Compression offers several quality levels, so you can choose a smaller file or better image quality depending on the document. Mobile apps make it easy to compress a PDF from a phone before sending it.

Premium, listed around $7 per month on annual billing in recent comparisons, removes limits and adds batch processing and advanced features. Files are stored on servers in the European Economic Area as a rule and deleted within about two hours. For regular compression plus mobile use, iLovePDF is good value.

Sejda suits people who occasionally need to compress a larger PDF online. The free tier accepts files up to 50 MB or 200 pages, which covers most scanned documents and reports, while the paid web tier accepts up to 500 MB. That headroom matters when a scanned contract or ebook exceeds the limits of other free tools.

Paid pricing is listed around $7.50 per month on annual billing. A desktop version is also available for offline work. Sejda files are processed online on the free web tool, so sensitive documents deserve the same caution as with any online compressor. For large occasional files, Sejda is a practical pick.

Adobe Acrobat is the professional standard, and compression is one feature inside a complete PDF system. It handles OCR on scanned pages, so a scanned document can be compressed and made searchable at the same time. E-signatures, forms, redaction, and enterprise compliance features make it the right choice for legal, finance, and business teams.

The price reflects that scope. Acrobat Pro is listed around $19.99 to $23.99 per month depending on plan and billing, which is far more than a compression only tool. If you only shrink a PDF a few times a year, use PDF24 or a free tier instead. If PDFs are central to your work, Acrobat is the safest long term choice.

PDF2Go is a straightforward online tool for quick jobs. Upload a PDF, compress it, and download the result, with options to edit, convert, merge, or split PDFs on the same site. No install is needed, which helps on a shared or borrowed computer.

Free use has limits on file size and tasks, so heavy users will need a paid plan, with pricing listed on the vendor site. Like other online tools, PDF2Go uploads your file for processing, so avoid it for highly sensitive documents unless you check its privacy and deletion terms. For a quick shrink before an email attachment, it works well.

PDF Candy covers compression alongside a wide set of PDF tools, including conversion, merging, splitting, and protection. The interface is simple, which helps when you just want to shrink a file and move on. A desktop version is available for users who prefer offline processing or who handle files regularly.

Free use covers basic tasks, with paid plans removing limits and adding batch features. Pricing is listed on the vendor site and varies by plan length. PDF Candy is a good middle option: simpler than Acrobat, more complete than a single purpose compressor, and available offline through its desktop app.

Foxit PDF Editor is a desktop alternative to Adobe Acrobat, with PDF optimization and compression built into a full editor. You can reduce file size, adjust image quality, and remove unused objects, while also editing text, adding comments, and signing documents. Working on desktop keeps sensitive files off a web server, which is a privacy plus.

Pricing varies by license type and platform, so check the Foxit site for current individual and team prices. Foxit is more complex than a one click online compressor, and that complexity is unnecessary for a single file. For teams that edit PDFs daily and want desktop control, it is a strong Acrobat alternative.