Free and open first

Best PDF compressors in 2026

PDF compressors shrink PDF files for easier handling. This list covers tools available on the web, Windows, iOS, Android, macOS and Linux.

22 apps
How the order is worked out

1

BentoPDF Hyper Compress

Free plan Open source APIExtensionLinux+4

Hyper Compress offers several integration forms and a lossless option, with licensing that depends on how it is used or distributed.

8.7 Free plan · paid from $99/yr Visit site
2

PDF Candy
by PDF Candy
Free plan AndroidiPhoneLinux+3

PDF Candy combines a broad set of PDF tools with AI features and cloud storage connections.

7.7 Free plan · paid from $6/mo Visit site
3

PDF2Go
by PDF2Go
Free plan AndroidAPIExtension+5

PDF2Go covers common PDF edits alongside tools such as OCR, redaction, and translation. The Free plan has limited processing; higher file and batch limits are listed for paid plans.

7.7 Free plan Visit site
4

AvePDF

Free plan AndroidiPhoneLinux+1

AvePDF covers common PDF tasks and conversion across a wide range of formats, with cloud upload and save options.

7.6 Free plan Visit site
5

PDF24 Compare PDF

Free plan AndroidiPhoneLinux+3

PDF24 Compare PDF provides several ways to review text changes without installing software.

7.4 Free plan Visit site
6

PDFOptim

Free plan iPhoneMacWeb+1

PDFOptim combines PDF editing tools with browser-based and native offline options.

7.4 Free plan · paid from $4.99/mo Visit site
7

PDF Compressor by DocuPub

Free plan WebWindows

Choose PDF Compressor by DocuPub for free browser-based compression with controls over images, PDF compatibility, and removable content.

7.2 Free plan Visit site
8

Compressify

Free plan AndroidExtensioniPhone+1

Choose Compressify if you need image compression across web and mobile, batch PDF processing, or its Figma and WordPress workflows.

7.2 Free plan Visit site
9

Sejda PDF Editor
by Sejda PDF Editor
Free plan LinuxMacWeb+1

7.2 Free plan Visit site
10

Online PDF Compressor

Free plan Web

Choose Online PDF Compressor for browser-based PDF compression without an account or installation, with three compression levels and a 100 MB file limit.

7.1 Free plan Visit site
11

PDF Compressor

Free plan Web

Choose PDF Compressor for free online compression when you need to process batches of PDFs without installing software.

7.1 Free plan Visit site
12

Xodo Compress PDF

Free plan AndroidAPIExtension+6

Xodo pairs a simple online compressor with a larger collection of document tools across web, desktop, and mobile.

7.1 Free plan · paid from $7.99/mo (annual) · 3-day trial Visit site
13

Smallpdf
by Smallpdf
Free plan AndroidiPhoneWeb+1

Smallpdf brings a broad set of PDF tasks together, including OCR, annotations, document signing and file sharing across devices.

7.1 Free plan · paid from $7/user/mo (annual) · 7-day trial Visit site
14

PDF Resizer

Free plan Web

Choose PDF Resizer for free browser-based PDF tasks, especially when bulk processing and no-account access matter.

7.0 Free plan Visit site
15

Foxit PDF Compressor

Free plan AndroidiPhoneMac+2

Foxit offers a no-cost online option for individual files and desktop tools for batch and offline compression. Check the file limit and the different paid-plan features before choosing an option.

7.0 Pricing on request Visit site
16

iLovePDF
by iLovePDF
Free plan AndroidiPhoneMac+2

iLovePDF covers common PDF tasks alongside form creation, AI tools, and an offline desktop app.

7.0 Free plan Visit site
17

WeCompress

Free plan Web

WeCompress covers common document and image formats without a charge, with an analyzer for larger files. The 50 MB limit and one-file workflow are important constraints for online use.

6.9 Free plan Visit site
18

11zon Compress PDF

Free plan Web

11zon Compress PDF provides browser-based compression, batch handling, and control over output size at no charge.

6.9 Free plan Visit site
19

Adobe PDF Services API
by Adobe
Free plan Web

Adobe PDF Services API covers document creation, conversion, page operations, and template-based generation.

6.8 Free plan Visit site
20

Online2PDF

Free plan Web

Online2PDF brings a broad set of PDF tasks into a web service, with batch support and a free plan. Its lack of API, local software, and automated bulk processing limits it for repeatable workflows.

6.8 Free plan Visit site
21

OpenToolKit CompressPDF

Free plan Web

6.2 Free plan Visit site
22

PDF.co
by Artifex Software, Inc.
Free trial APIWeb

PDF.co offers a wide set of PDF operations through a REST API, with integration options and self-hosted processing listed. The trial lasts 30 days; annual-billed Basic pricing is $8.99/mo.

5.5 From $8.99/mo (annual) · 30-day trial Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

Compare the platform you use, pricing model, free-plan terms and free-trial availability. If you need to read or change code, check for an open-source licence before choosing.

Questions

Are PDF compressors free?

Pricing varies. Listings include free products, freemium services and free plans. Check the pricing note for the tool you are considering.

Can I try a PDF compressor without paying?

A free plan or free trial may be available. Confirm the current terms on the tool's website before use.

Which platforms support these tools?

Platforms represented include web, Windows, iOS, Android, macOS and Linux.

Can I read the source code?

Some tools offer open-source code. Check the specific tool's licence to confirm access and permitted changes.

Is PDFOptim free?

PDFOptim lists a free plan. Its pricing note says paid access starts at $4.99 per month.

Questions

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