iText pdfOptimizer vs PDFOptim

iText pdfOptimizer9.1Visit PDFOptim9.0Visit

Higher score iText pdfOptimizer #2 in PDF Compression Software 9.1/10 Free plan · 30-day trial Free planFree trial✓ 2 of 3 features Visit iText

vs

PDFOptim #3 in PDF Compression Software 9.0/10 Free plan Free plan✓ 2 of 3 features Visit PDFOptim

• iText pdfOptimizer fits best

  Developers embedding PDF optimization

• PDFOptim fits best

  Users wanting previews and cross-platform workflows

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Side by side

Feature	iText pdfOptimizer 9.1/10 Visit ↗	PDFOptim 9.0/10 Visit ↗
At a glance
Editor score	9.1	9.0
Ranking	#2 in PDF Compression Software	#3 in PDF Compression Software
Best for	Developers embedding PDF optimization	Users wanting previews and cross-platform workflows
Pricing model	Free	Free plan + paid
Starting price	Free	$4.99/mo
Free plan	✓	✓
Free trial	30 days	—
Deployment	Self-hosted	Cloud, Desktop, Mobile
Integrations	5 integrations	1 integrations
Features iText pdfOptimizer 2/3 · PDFOptim 2/3
Batch compression	✓	✓
Offline desktop app	Not checked yet	✓ (best)
API access	✓ (best)	Not checked yet
Specs
Compression modes	Not checked yet	Balanced
Maximum file size	Not checked yet	25 MB
Supported platforms	api, self_hosted	web, macos, ios, windows
Our review
Pros	Preset and custom profiles cover high, mid, low, and lossless compression. Optimizes images, fonts, streams, color spaces, and document structure. Supports batch processing, automation, size checks, and custom reports.	Side-by-side previews help compare compression quality before saving. Presets cover Web, Standard, Print, and Custom compression needs. Native batch processing supports scanned and vector PDF optimization.
Cons	Commercial licensing uses custom or volume-based pricing. The AGPLv3 option requires disclosure of the application's full source code. Designed for Java and .NET integrations rather than general browser use.	The Free plan allows only 3 operations per day. Free files are limited to 25 MB; paid plans allow up to 200 MB. Apple Shortcuts is the only listed integration.
Our verdict	iText pdfOptimizer is a developer-focused add-on for the iText Core PDF library, intended for teams embedding PDF optimization into Java or .NET applications. It can optimize PDFs for file size or processing speed through configurable… Read the review →	PDFOptim is a PDF compression product with browser-based tools and native applications for macOS, iOS, and Windows. It is designed for users who need to reduce PDF sizes across devices, compare output quality before saving, or process… Read the review →

Strengths and trade-offs

• iText pdfOptimizer — where it wins

  • Preset and custom profiles cover high, mid, low, and lossless compression.
  • Optimizes images, fonts, streams, color spaces, and document structure.
  • Supports batch processing, automation, size checks, and custom reports.

  Where it doesn't

  • Commercial licensing uses custom or volume-based pricing.
  • The AGPLv3 option requires disclosure of the application's full source code.
  • Designed for Java and .NET integrations rather than general browser use.

• PDFOptim — where it wins

  • Side-by-side previews help compare compression quality before saving.
  • Presets cover Web, Standard, Print, and Custom compression needs.
  • Native batch processing supports scanned and vector PDF optimization.

  Where it doesn't

  • The Free plan allows only 3 operations per day.
  • Free files are limited to 25 MB; paid plans allow up to 200 MB.
  • Apple Shortcuts is the only listed integration.

• iText pdfOptimizer9.1/10 · Free plan · 30-day trial

  A developer-focused PDF optimizer with detailed controls, automation, and flexible licensing.

  Visit iTextFull verdict →
• PDFOptim9.0/10 · Free plan

  A flexible PDF compressor with previews, batch processing, and cross-platform coverage.

  Visit PDFOptimFull verdict →