Best App for Shrinking PDFs in 2026: 8 Compared
- Our pick for most people is Smallpdf, because it covers simple pdf compression with the fewest trade-offs in this group.
- iLovePDF is the best second look when Smallpdf does not fit, since it serves compression plus pdf tools rather than the same audience.
- Prices and plan limits change often, so confirm the current terms on each vendor site and read the fine print on limits, renewals and cancellation before you pay.
- The right choice depends less on the longest feature list and more on app for shrinking PDFs, your budget and how much support you want.
Quick comparison
| Product | Ideal for | Price from | Free version | |
|---|---|---|---|---|
 Smallpdf | Simple PDF compression | See website | Yes | Visit |
 iLovePDF | Compression plus PDF tools | See website | Yes | Visit |
 PDF24 Tools | Free PDF compression | See website | Yes | Visit |
 Sejda | Compression with privacy claims | See website | Yes | Visit |
 PDF2Go | Browser compression with options | See website | Yes | Visit |
 Soda PDF | Compression across web and desktop | See website | Yes | Visit |
 Adobe Acrobat | Compression inside Acrobat | See website | Free trial | Visit |
 PDF Candy | Free compression with tools | See website | Yes | Visit |
The best app for shrinking PDFs
We compared official feature pages, pricing pages, app store listings, privacy policies and public reviews to build this list for best app for shrinking pdfs. Every option below exists and works today, and each one earns its place for a different kind of reader. Smallpdf leads this list because it handles simple pdf compression well for the widest range of readers, but the right choice depends on your budget, your device and how much support you want. Read the product notes below with your own must-have features in mind, and treat any price shown as a starting point to verify on the official site.
Smallpdf
Ideal for: Simple PDF compression
Start with what it does best. Smallpdf is built for readers who want simple pdf compression, and its published feature set matches that promise rather than trying to cover every possible use case at once. Its clearest strength is simple compression in a browser. The price picture is see website, with a free plan status of yes. Before you sign up, check the current plan limits on the official site, because caps on users, usage or features are where most buyers get surprised after the first month. The catch is that free daily tasks run out fast. It fits readers who put simple pdf compression first and accept the limits above, and it is a weaker fit when you need a very different core job done.
- One-click compression
- Quality choices
- Other PDF tools
- Free tasks are limited
- Strong compression needs Pro
iLovePDF
Ideal for: Compression plus PDF tools
The appeal is easy to see. iLovePDF is built for readers who want compression plus pdf tools, and its published feature set matches that promise rather than trying to cover every possible use case at once. Its clearest strength is compression joined to a full PDF toolkit. The price picture is see website, with a free plan status of yes. Before you sign up, check the current plan limits on the official site, because caps on users, usage or features are where most buyers get surprised after the first month. The catch is that free limits bind frequent users. It fits readers who put compression plus pdf tools first and accept the limits above, and it is a weaker fit when you need a very different core job done.
- Compression levels
- Batch tools
- Other PDF tools
- Free limits on size and tasks
- Some levels need a paid plan
PDF24 Tools
Ideal for: Free PDF compression
This one earns its place for a clear reason. PDF24 Tools is built for readers who want free pdf compression, and its published feature set matches that promise rather than trying to cover every possible use case at once. Its clearest strength is free compression without a subscription. The price picture is see website, with a free plan status of yes. Before you sign up, check the current plan limits on the official site, because caps on users, usage or features are where most buyers get surprised after the first month. The catch is that control over quality is basic. It fits readers who put free pdf compression first and accept the limits above, and it is a weaker fit when you need a very different core job done.
- Free compression
- Desktop app
- No account for many tools
- Interface is busy
- Compression control is basic
Sejda
Ideal for: Compression with privacy claims
Look first at the core job it handles. Sejda is built for readers who want compression with privacy claims, and its published feature set matches that promise rather than trying to cover every possible use case at once. Its clearest strength is compression with clear deletion claims. The price picture is see website, with a free plan status of yes. Before you sign up, check the current plan limits on the official site, because caps on users, usage or features are where most buyers get surprised after the first month. The catch is that free hourly limits bind busy users. It fits readers who put compression with privacy claims first and accept the limits above, and it is a weaker fit when you need a very different core job done.
- Compression options
- Files deleted after processing
- Free caps on pages and tasks
- Larger files need paid
PDF2Go
Ideal for: Browser compression with options
The main draw is practical, not flashy. PDF2Go is built for readers who want browser compression with options, and its published feature set matches that promise rather than trying to cover every possible use case at once. Its clearest strength is browser compression with quality choices. The price picture is see website, with a free plan status of yes. Before you sign up, check the current plan limits on the official site, because caps on users, usage or features are where most buyers get surprised after the first month. The catch is that free limits apply to frequent use. It fits readers who put browser compression with options first and accept the limits above, and it is a weaker fit when you need a very different core job done.
- Quality and size options
- Other PDF tools
- Free limits apply
- Larger files need a paid plan
Soda PDF
Ideal for: Compression across web and desktop
Consider this one on its own terms. Soda PDF is built for readers who want compression across web and desktop, and its published feature set matches that promise rather than trying to cover every possible use case at once. Its clearest strength is compression across web and desktop. The price picture is see website, with a free plan status of yes. Before you sign up, check the current plan limits on the official site, because caps on users, usage or features are where most buyers get surprised after the first month. The catch is that the free version covers basic jobs only. It fits readers who put compression across web and desktop first and accept the limits above, and it is a weaker fit when you need a very different core job done.
- Compression tools
- Desktop and web versions
- Free version is limited
- Full compression needs paid
Adobe Acrobat
Ideal for: Compression inside Acrobat
The case for it is straightforward. Adobe Acrobat is built for readers who want compression inside acrobat, and its published feature set matches that promise rather than trying to cover every possible use case at once. Its clearest strength is compression inside the standard PDF suite. The price picture is see website, with a free plan status of free trial. Before you sign up, check the current plan limits on the official site, because caps on users, usage or features are where most buyers get surprised after the first month. The catch is that you pay for a full suite for one job. It fits readers who put compression inside acrobat first and accept the limits above, and it is a weaker fit when you need a very different core job done.
- Reliable compression
- PDF optimisation
- Full suite
- Subscription cost
- Overkill for one-off compression
PDF Candy
Ideal for: Free compression with tools
Here is the short version. PDF Candy is built for readers who want free compression with tools, and its published feature set matches that promise rather than trying to cover every possible use case at once. Its clearest strength is free compression with a simple interface. The price picture is see website, with a free plan status of yes. Before you sign up, check the current plan limits on the official site, because caps on users, usage or features are where most buyers get surprised after the first month. The catch is that free task limits apply. It fits readers who put free compression with tools first and accept the limits above, and it is a weaker fit when you need a very different core job done.
- Free compression
- Many PDF tools
- Simple interface
- Free limits on tasks
- Some tools need Premium
How we picked these
We started from the topic itself, best app for shrinking pdfs, and kept only products that truly fit it and are available to US readers in October 2026. We checked official feature pages and pricing pages first, then app store listings, privacy policies and public reviews where they added useful context. Products with unclear ownership, dead homepages or a poor fit for the topic were left out, even when they appeared on other roundups. We did not claim hands-on testing that did not happen. The comparisons here rest on published specs, current pricing, plan limits and documented strengths and weaknesses, and we flag the honest catch for each option so you can weigh it before you commit. If a price could not be verified on the vendor site, we show See website rather than guessing a number.
How to shrink a PDF without ruining it
Start by writing down the one job you need done most weeks, then check which options handle that job on their entry plan, not only on their most expensive plan. A long feature list can hide the fact that the feature you need sits behind a higher tier, so open the pricing page and the feature comparison table before you decide. Pay attention to limits on users, projects, storage, messages or monthly usage, and to what happens when you hit a limit. Next, think about the total cost over a year, including add-ons, data or seat charges, and any fee for extra support. A cheap monthly price can grow fast once a team is added, and a higher price can be fair value when it replaces two other tools. Use a free plan or trial to test the exact workflow you will use daily, with your own files, contacts or content, and keep notes on what felt slow or confusing. Finally, check the exit route before you pay. Can you export your data, cancel without a long notice period, and keep access to your work if you downgrade. Read the privacy policy for how your data is used, and check support hours and channels if you will need help at busy times. The best choice is usually the one that fits your daily work, your budget and your tolerance for setup effort, not the one with the loudest marketing.
Frequently asked questions
How do I shrink a PDF file?
Upload the PDF to Smallpdf, iLovePDF or PDF24, choose a compression level, then download the smaller file and check that text and images still read well. Strong compression can blur images, so pick the lightest level that meets your size limit.
What is the best app for shrinking PDFs on a phone?
Smallpdf, iLovePDF and Sejda all work in a mobile browser and suit phone compression. Desktop tools suit large files better. Check file size limits before uploading a large PDF from a phone.
How much can a PDF be compressed?
Image-heavy PDFs often shrink by half or more, while text-only PDFs shrink less, since text is already compact. Results depend on image resolution and compression level. Always keep the original file until you check the compressed copy.
Is it safe to compress PDFs online?
Browser tools upload your file, so avoid them for sensitive documents and prefer desktop tools such as Adobe Acrobat or PDF24 desktop for private files. Read deletion claims on the vendor site. Keep a local copy of sensitive originals.