Excise

Excise is an open-source PDF workbench for Windows, macOS, and Linux, with both a desktop app and command-line tools. It is best for people who need everyday PDF handling and content-removing redaction, especially when they want ways to audit the result. Its breadth is useful, but specialized print, JavaScript, and certificate-trust workflows call for another tool.

Overview

Excise combines common document tasks with redaction that removes content from the PDF rather than concealing it beneath a black rectangle. That makes it a stronger fit for sensitive-document cleanup than an editor whose redaction is only visual. It is not a text editor or a PDF converter, so readers who need to rewrite document text or change file formats should look elsewhere.

Key features

Redaction and audit

The redaction engine removes text, images, and vector graphics from PDF content streams. It also scrubs metadata, attachments, JavaScript, thumbnails, and hidden layers by default, and reports removals. The CLI adds two useful checks: unredact tests whether redacted text still leaks, while audit looks for text hidden under opaque overlays. Together, removal and auditing make Excise particularly relevant when disclosure risk matters, though these tools do not make it a substitute for workflows that depend on certificate-authority trust decisions.

Everyday document work

Excise supports viewing, search, text selection and copying, annotations, page organization, Bates numbering, and file-size reduction. It can fill and flatten AcroForms and create new fields. OCR uses the system's Tesseract, so it is a practical option when OCR is needed without a separate conversion feature. Excise does not support text editing or PDF conversion, which limits its usefulness for document revision and format-changing work.

Automation and development

The command-line tool supports batch workflows and stable JSON output, making Excise a better fit for repeatable processing than a desktop-only utility. The project also includes managed-code PDF core and rendering libraries, an Avalonia viewer control, and a C ABI over Excise.Core for other languages. That breadth may matter to developers integrating PDF handling; it is less consequential for someone who only needs occasional desktop edits.

Encryption, signatures, and XFA

Excise reads and writes AES-128 and AES-256 encryption and inspects digital signatures against the operating system trust store. Signature inspection does not check certificate revocation or evaluate timestamp and long-term validation material, so it should not anchor high-assurance signature decisions. Dynamic XFA layouts are experimental, may omit or move content, and cannot be filled in Excise; users with XFA forms should choose another workflow.

Pricing

Excise is free: the Open source plan is free and is MIT licensed, with no paid tiers stated. That suits individuals or teams seeking a no-cost PDF workbench, but the price does not bring an auto-update or signed installer: builds are not signed or notarized, and release assets include SHA-256 files for verification. Downloads are provided for Apple Silicon macOS, Windows 10/11 x64, Ubuntu/Debian, and x64 or ARM64 Linux.

Platforms

The desktop app supports Windows, macOS, and Linux. Self-contained packages cover Apple Silicon macOS, Windows 10/11 x64, Ubuntu/Debian, and x64 or ARM64 Linux. Builds are not signed or notarized and do not auto-update, so users must be comfortable verifying release assets with the supplied SHA-256 files and handling updates themselves.

Who it's for

Excise is well suited to people who want free desktop PDF tools, permanent content-removing redaction, and command-line auditing or batch processing across the three major desktop operating systems. Its libraries and API also make it relevant to developers building PDF functionality into other software. It is not the right choice for prepress, color-managed print production, JavaScript or portfolio workflows, XFA form filling, or decisions requiring certificate-authority trust validation.

Pros and cons

Pros

• Redaction removes text, images, and vector graphics from PDF content streams rather than merely covering them.
• Default cleanup reaches metadata, attachments, JavaScript, thumbnails, and hidden layers, and the CLI provides leak and overlay audits.
• Free, MIT-licensed software combines desktop tools with batch workflows and developer libraries.
• AcroForm creation, filling, and flattening complement search, annotations, page organization, and Bates numbering.

Cons

• No text editing or PDF conversion, which rules it out for users who need either task.
• Experimental XFA support cannot fill XFA fields and may omit or move content.
• Signature checks omit revocation and timestamp or long-term validation material.
• Unsigned, non-notarized builds and no auto-update mean installation verification and updates require user attention.
• It does not target prepress, color-managed print production, JavaScript workflows, portfolio workflows, or certificate-authority trust decisions.

Alternatives

Document Redaction Software and PDF editors are useful starting points for comparing tools by category.

Choose LocalRedact instead if a Python package or optional local HTTP service better suits your free, cross-platform redaction setup. Philter is an alternative for individual, non-commercial, or evaluation use that calls for full on-device redaction and GitHub community support on its free desktop plan.

BleachPDF is another free option for Linux and macOS users who want software that runs on their own computer without subscriptions. Choose PDFRedaction if a web-based tool with a free allowance of 10 documents per day for registered users, AI detection, OCR, image redaction, and local processing better matches the task.

PineThink Redact offers a free single-document personal-use plan and a 14-day trial before its Premium plan at $6.99 a month. Redactable may fit occasional web use: it allows three free documents total, then charges $7.50 per document on Pay-As-You-Go.

RedactFile is a web and API alternative whose free plan limits uploads to 2MB, 10 per day, and 500MB of storage, and excludes API access. RedactLaw has a free allowance of five documents per month, up to 10 pages per document, with one user.

Verdict

Choose Excise if you want a free, cross-platform PDF workbench whose redaction removes document content and whose CLI can check for leaks or process batches. Its everyday tools and developer interfaces make it broader than a single-purpose redactor. Look elsewhere if your work depends on XFA filling, robust signature validation, or specialized print and JavaScript workflows.