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PDFOptim
What it is
PDFOptim provides browser tools to compress, merge, split, rotate, and reorder PDF files, with native apps also offered for macOS, iOS, iPad, and Windows. Its compressor can reduce file size by up to 90%, with Web, Standard, Print, and Custom settings. Compress Only mode strips metadata and compresses internal streams without re-rendering software-created PDFs, preserving selectable text. Users can process multiple PDFs in a batch; downloading all results as a ZIP requires Pro. Browser tools use JavaScript and WebAssembly without uploading, storing, or logging files on PDFOptim servers. They can work offline after the page loads, though loading and license verification require internet access. The free plan allows three operations per day on files up to 25 MB. Pro Monthly is $4.99 a month; Lifetime is $19, paid once. Native apps process documents locally, and system requirements are macOS 12 or later, iOS 15.6 or later, or Windows 10 or later.
For and against
For
- Offers four PDF tools in the free plan.
- Compression can reduce PDF size by up to 90%.
- Browser processing does not upload files to its servers.
- Batch compression is available.
- Native apps process documents locally.
Against
- Free plan allows three operations per day.
- Free plan caps files at 25 MB.
- ZIP downloads for batch results require Pro.
- Offline browser use still needs initial loading and license verification.
The verdict
PDFOptim combines PDF compression and file organization with browser and native-app options. The free plan is limited to three daily operations and 25 MB files; Pro Monthly is $4.99 a month, or Lifetime is $19, paid once.
Who it suits
PDFOptim suits people who need PDF compression and basic file organization across browser and native apps. It may also suit users who want local processing or offline browser use after initial loading.
Plans and prices
Free
3 operations per day · up to 25 MB per file · all 4 PDF tools · private processing
Read 2 Oct 2026 · pdfoptim.com
Pro Monthly
unlimited operations · files up to 200 MB · batch ZIP download · all 4 PDF tools
Read 2 Oct 2026 · pdfoptim.com
Lifetime
unlimited operations · files up to 200 MB · batch ZIP download · all future tools
Read 2 Oct 2026 · pdfoptim.com
On the record
- Batch processing
- Users can drop multiple PDFs for batch compression, and Pro users can download all results as a ZIP file.pdfoptim.com · read 2 Oct 2026
- Compression
- The compressor can reduce PDF size by up to 90% and is intended for scanned documents, radiographs and photos.pdfoptim.com · read 2 Oct 2026
- Compression presets
- Compression presets are Web at 96 DPI/JPEG 60%, Standard at 150 DPI/JPEG 75% and Print at 200 DPI/JPEG 85%, with a Custom mode.pdfoptim.com · read 2 Oct 2026
- Core tools
- PDFOptim provides browser tools to compress, merge, split, rotate and reorder PDF files.pdfoptim.com · read 2 Oct 2026
- Encrypted files
- PDFOptim may not be able to compress all password-protected PDFs and recommends removing the password first.pdfoptim.com · read 2 Oct 2026
- Native apps
- RootRise offers native offline PDFOptim apps for macOS, iOS, iPad and Windows.rootrisetech.com · read 2 Oct 2026
- Offline use
- The web tools work offline after the page has loaded, with internet needed for initial loading and license verification.pdfoptim.com · read 2 Oct 2026
- On-device security
- The native app processes documents locally, stores information on the device and does not send it to RootRise Technologies or third parties.rootrisetech.com · read 2 Oct 2026
- Privacy
- The web tools run in the browser with JavaScript and WebAssembly, with no file uploads, storage or logs on PDFOptim servers.pdfoptim.com · read 2 Oct 2026
- Refunds
- PDFOptim offers a 30-day no-questions-asked money-back guarantee and says refunds are processed within 24 hours by email.pdfoptim.com · read 2 Oct 2026
- Shortcuts integration
- On Mac, PDFOptim can act as a Finder Quick Action through Apple Shortcuts for background compression.rootrisetech.com · read 2 Oct 2026
- System requirements
- The native apps require macOS 12 or later, iOS 15.6 or later, or Windows 10 or later.rootrisetech.com · read 2 Oct 2026
- Vector PDFs
- Compress Only mode strips metadata and compresses internal streams without re-rendering, preserving text selectability for software-created PDFs.pdfoptim.com · read 2 Oct 2026
