Starix PDF
Get Pro
DESIGNED IN TAIWAN

Powerful PDF work.
Private by default.

Read, annotate, organize, compare and secure your documents in one calm desktop workspace. Your PDF content stays on your device.

Download freeExplore features ↗
✓ 14-day Pro trial✓ No card required✓ Windows 10 & 11
Real product interfaceEnglish · Dark theme
The actual Starix PDF desktop interface in English dark mode
LOCALPDF processing
4Interface languages
3Devices per Pro license
14 DAYSFull Pro trial

ONE WORKSPACE. THE WHOLE PDF FLOW.

Everything you need to move a document forward.

Every image below is captured from the current Starix PDF desktop application.

01

READ & ANNOTATE

Review without losing your place.

Search, highlight, add notes and move through long documents with thumbnails that stay in view.

  • ✓Highlights and rich notes
  • ✓Continuous page view
  • ✓Undo-friendly editing
Starix PDF annotation workspace showing a real five-page product brief
02

ORGANIZE PAGES

See the whole document. Then shape it.

Reorder, rotate, duplicate, delete and insert pages in one visual workspace before you save.

  • ✓Drag to reorder
  • ✓Multi-page actions
  • ✓Clear page counts
Starix PDF page organizer with five real PDF page thumbnails
03

COMPARE DOCUMENTS

Two versions in. Meaningful changes out.

A clear two-file setup makes document comparison obvious before processing begins.

  • ✓Original and revised slots
  • ✓Drag-and-drop input
  • ✓Local comparison workflow
Starix PDF compare setup with an original and revised PDF selected
04

FORMS & SECURITY

Finish the document, not just the text.

Fill and create form fields, redact sensitive content, encrypt files and add handwritten or digital signatures.

  • ✓Fillable PDF forms
  • ✓Redaction and encryption
  • ✓Two signature workflows
Starix PDF forms and security workspace displaying a fillable client form
05

BATCH & EXPORT

Repeat less. Deliver more.

Compare files, run batch operations and export to useful formats from the same focused interface.

  • ✓Batch processing
  • ✓Word and Excel export
  • ✓Image export and OCR
Starix PDF batch and export workspace with a revised product brief

PRIVATE BY ARCHITECTURE

Your document is not our business.

Opening, viewing, searching, editing, OCR and exporting happen on your computer. Starix PDF does not upload your PDF content, filenames or file paths to our servers.

01Files stay localNo cloud document processing.
02Minimal license dataOnly activation data is sent to Polar.
03Payment handled by PolarWe do not receive your card number.
04No analytics yetThis launch site has no advertising trackers.
Read the full Privacy Policy →

SIMPLE PRICING

Choose flexibility or own it for good.

One person. Up to three devices. Prices in USD; applicable tax is shown at Polar checkout.

STARIX PDF FREE

$0

Free PDF reader

  • Read, search and print PDFs
  • Recent files and page navigation
  • No account required
Download free
FLEXIBLE

STARIX PDF PRO · MONTHLY

US$4.99/ month

Cancel future renewals in the customer portal.

  • Annotations and page editing
  • OCR, forms and redaction
  • Password protection and signatures
  • Compare, batch and export workflows
  • Use on up to 3 devices
Choose monthly
BEST VALUE

STARIX PDF PRO · LIFETIME

US$49.99 once

Permanent access to the purchased major version.

  • Annotations and page editing
  • OCR, forms and redaction
  • Password protection and signatures
  • Compare, batch and export workflows
  • Use on up to 3 devices
Buy lifetime

Checkout stays on the Starix website. The encrypted payment form is processed by Polar as merchant of record. See our 7-day Refund Policy.

START WITH THE FULL PRODUCT

Try Starix PDF Pro free for 14 days.

After the trial, keep using the free reader or unlock Pro for up to three devices.

Request early accessThe public installer is undergoing Windows code-signing before release.