FS PDF Compressor vs PDF Compressor by DocuPub

FS PDF Compressor8.9Visit PCPDF Compressor by DocuPub8.5Visit

Higher score FS PDF Compressor #4 in PDF Compression Software 8.9/10 Free plan Free plan✓ 2 of 3 features Visit GitHub

vs

PC PDF Compressor by DocuPub #8 in PDF Compression Software 8.5/10 Free plan Free plan✓ 2 of 3 features Visit DocuPub

• FS PDF Compressor fits best

  Privacy-focused users wanting free desktop compression

• PDF Compressor by DocuPub fits best

  Users needing free configurable compression

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Side by side

Feature	FS PDF Compressor 8.9/10 Visit ↗	PCPDF Compressor by DocuPub 8.5/10 Visit ↗
At a glance
Editor score	8.9	8.5
Ranking	#4 in PDF Compression Software	#8 in PDF Compression Software
Best for	Privacy-focused users wanting free desktop compression	Users needing free configurable compression
Pricing model	Free	Free
Starting price	Free	Free plan
Free plan	✓	✓
Free trial	—	—
Deployment	Desktop	Cloud, Desktop
Platforms	macOS, Windows, Linux	Web, Windows
Features FS PDF Compressor 2/3 · PDF Compressor by DocuPub 2/3
Batch compression	✓ (best)	Not checked yet
Offline desktop app	✓	✓
API access	Not checked yet	✓ (best)
Specs
Compression modes	Balanced	Not checked yet
Maximum file size	Not checked yet	50 MB
Supported platforms	macos, windows, linux	web, windows, api
Our review
Pros	Local processing without uploads, accounts, analytics, or telemetry Batch compression for multiple PDFs and folders Native integrations across macOS, Windows, and Linux file managers	Free web and Windows compression options Detailed image, object, metadata, and font controls PDF/A preservation and PDFCOMPRESS integration support
Cons	Desktop-only workflow across macOS, Windows, and Linux Three profiles provide less granular quality control Compression depends on the bundled Ghostscript runtime	Online files are limited to 50 MB The local application is available for Windows Advanced settings may require document-processing expertise
Our verdict	FS PDF Compressor is a free, open-source desktop utility for reducing PDF file sizes locally. It is suited to privacy-focused users, individuals handling documents on their own computers, and teams that need batch compression without… Read the review →	PDF Compressor by DocuPub reduces PDF file sizes through a free online service, a downloadable Windows application, and programmatic PDFCOMPRESS integration. It suits individuals and teams that want configurable compression rather than a… Read the review →

Strengths and trade-offs

• FS PDF Compressor — where it wins

  • Local processing without uploads, accounts, analytics, or telemetry
  • Batch compression for multiple PDFs and folders
  • Native integrations across macOS, Windows, and Linux file managers

  Where it doesn't

  • Desktop-only workflow across macOS, Windows, and Linux
  • Three profiles provide less granular quality control
  • Compression depends on the bundled Ghostscript runtime

• PDF Compressor by DocuPub — where it wins

  • Free web and Windows compression options
  • Detailed image, object, metadata, and font controls
  • PDF/A preservation and PDFCOMPRESS integration support

  Where it doesn't

  • Online files are limited to 50 MB
  • The local application is available for Windows
  • Advanced settings may require document-processing expertise

• FS PDF Compressor8.9/10 · Free plan

  A privacy-focused, open-source desktop compressor with batch workflows and three quality profiles.

  Visit GitHubFull verdict →
• PCPDF Compressor by DocuPub8.5/10 · Free plan

  A free, configurable compressor for users who want control beyond basic file shrinking.

  Visit DocuPubFull verdict →