Documents & Writing·Standings
PDF Compressors
PDF compressors reduce file size; choose based on where you need to use them and whether a free plan or trial is enough.
Use the board's signal score out of 10 alongside marks for a public API, open-source code and a free tier. Pricing labels and platform listings help narrow the fit.
- 22 platforms
- 21 with a free tier
- 1 BH
BentoPDF Hyper Compresshyper.bentopdf.comOpen-source PDF compression engine with lossless mode, APIs, SDKs, self-hosting and web builds.
- 2 PC
PDF Candypdfcandy.comPDF editor with text changes, annotations and OCR on mobile, desktop and web; free plan, paid from $6/mo.
- 3 P
PDF2Gopdf2go.comPDF toolkit for apps, browsers, extensions and an API across major platforms; free plan and trial.
- 4 PCPDF24 Compare PDFtools.pdf24.org
Free browser tool marks text changes between two PDF versions in several viewing modes.
- 5 A
AvePDFavepdf.comBrowser PDF service for compression, conversion, OCR, signing and more; free plan on web and mobile.
- 6 XC
Xodo Compress PDFxodo.comPDF compressor with Low or High settings across desktop, mobile, web, API and self-hosted options.
- 7 S
Smallpdfsmallpdf.comPDF text editor runs on the web, Windows, Android and iOS, with a free plan and paid options.
- 8 PR
PDF Resizerpdfresizer.comFree web service offers PDF resizing, compression, merging and splitting, with no account required.
- 9 P
PDFOptimpdfoptim.comPDF compressor with preset or custom settings, batch handling and text-preserving vector compression.
- 10 CCompressifycompressify.io
File compressor for web, mobile and extension use; handles batches and offers PDF compression five times daily free.
- 11 PCPDF Compressor by DocuPubdocupub.com
Web and Windows PDF compressor with controls for images, compatibility, PDF/A and web viewing.
- 12 FP
Foxit PDF Compressorfoxit.comOnline PDF compressor with free access and trial; upload, reduce size and download on major platforms.
- 13 I
iLovePDFilovepdf.comFreemium PDF editor changes text and adds annotations on web, desktop and mobile platforms.
- 14 OPOnline PDF Compressoronlinepdfcompressor.com
Web PDF compressor with three quality levels for files up to 100MB; free to use.
- 15 PC
PDF Compressorpdfcompressor.comFree web tool that compresses up to 20 PDFs automatically and offers individual or ZIP downloads.
- 16 WWeCompresswecompress.com
Free web service compresses PDFs and office, image and spreadsheet files while keeping formats intact.
- 17 SP
Sejda PDF Editorsejda.comFreemium PDF editor changes text, adds annotations and runs OCR on desktop systems and the web.
- 18 1C11zon Compress PDFbigpdf.11zon.com
Free web tool compresses PDFs with adjustable strength, including multiple files at once.
- 19 O
Online2PDFonline2pdf.comFree web converter compresses, merges, rearranges and OCRs PDFs, handling up to 30 files and 250MB each.
- 20 PC
PDF.coArtifex Software, Inc.A paid web and API service for compressing PDFs and converting files between formats.
- 21 OC
OpenToolKit CompressPDFopentoolkit.github.ioA free web tool that compresses PDFs in your browser without uploading files.
- 22 APAdobe PDF Services APIAdobe
Cloud PDF processing API with a free plan, delivered on the web; SOC 2, ISO 27001 and GDPR listed.
Places #1, #2, #3, #4, #5 on this board are open to sponsors. Take #1 · Other ways to advertise
How to choose
Which platforms does it need to run on?
Choose a tool that lists the platform you use. The board includes web, Windows, iOS, Android, macOS and Linux listings.
Web access can suit a browser-based workflow, while a desktop or mobile listing may fit work away from a browser.
Do you need a free plan or trial?
Check the pricing label before signing up. The board marks free plans, freemium plans and free trials separately.
A freemium tool may have paid features; PDFOptim lists paid access from $4.99 per month, while free labels indicate a free plan.
Do you need a public API?
Look for the API mark if another app must send files to the compressor or receive results. Adobe PDF Services API is listed as an API-focused option.
Confirm the service's published terms and pricing before building an automated workflow.
Is open-source code important to you?
Check the open-source mark and the licence when code access or modification matters. The board records open-source status separately from free access.
A free plan does not by itself mean the code is open source.
Which pricing model fits your budget?
Compare free and freemium labels with any published paid price. PDF Candy and PDFOptim use freemium pricing, while PDF Compressor and PDF Resizer list free plans.
Use the pricing note to distinguish a free service from one that reserves features for paid access.
Questions
Are PDF compressors free?
The board includes tools labeled free or freemium. Free-plan and free-trial marks are shown separately.
Which platforms support PDF compression?
Listings cover web, Windows, iOS, Android, macOS and Linux. Check the platform label for the tool you want.
Is there an open-source PDF compressor?
Open-source status is marked separately on the board. Check the licence if code access or changes matter.
Do PDF compressors have APIs?
An API mark identifies public API access. Adobe PDF Services API is listed as an API-focused option.
What does freemium mean for a PDF compressor?
Freemium means a free plan is available alongside paid access. PDFOptim lists paid access from $4.99 per month.
Some top positions on this board can be paid placements, standing where they were sold. The facts on each platform are not for sale. How we rank · Disclosure