Excise

Excise is a free, open-source PDF editor for macOS, Windows, and Linux, with a graphical application and command-line tools. It supports document search, text selection and copying, annotations, page organization, Bates numbering, and AcroForm filling and flattening. Its redaction engine removes text, images, and vector graphics from PDF content streams rather than merely covering them. Redaction also scrubs metadata, attachments, JavaScript, thumbnails, and hidden layers by default, then reports removals. Command-line checks can look for redacted text that still leaks or text hidden beneath opaque overlays, and batch workflows provide stable JSON output. 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. Dynamic XFA layouts are experimental, may omit or move content, and cannot be filled in Excise. The project describes itself as an everyday PDF workbench, not a substitute for specialized workflows such as prepress, color-managed print production, JavaScript, portfolios, or certificate-authority trust decisions. Builds are unsigned, not notarized, and have no auto-update.

Excise combines everyday PDF tools with content-removing redaction and command-line checks. Its stated boundaries around XFA, signatures, and specialized production workflows are important to weigh before relying on it for those tasks.

Excise suits people who need cross-platform PDF editing, redaction, and command-line audit or batch workflows. It may also suit developers looking for PDF libraries or a C ABI, provided its specialized workflow limitations are acceptable.

Excise is a free, open-source PDF workbench for Windows, macOS, Linux, and command-line use. It suits privacy-conscious users, developers, and teams handling routine documents who need permanent redaction with checks for residual data. Choose it for content removal and automation; choose another product for text rewriting, PDF conversion, or specialized production and trust-validation work.

Overview

Excise combines everyday PDF handling with a redaction engine that removes material from the document structure instead of placing a visual cover over it. That distinction matters when a supposedly hidden passage must not remain recoverable. The trade-off is scope: Excise presents itself as an everyday workbench, not a replacement for Acrobat Pro in prepress, color-managed print production, JavaScript-heavy documents, portfolio workflows, or certificate-authority decisions.

Key features

Redaction and verification

Redaction removes text, images, and vector graphics from PDF content streams. By default it also scrubs metadata, attachments, JavaScript, thumbnails, and hidden layers, then reports what was removed. The command-line unredact check looks for text that still leaks after redaction, while audit detects text hidden beneath opaque overlays. This pairing gives security-minded operators a practical way to catch two common failure modes rather than trusting appearance alone.

Document tools

The desktop application covers viewing, search, text selection and copying, annotations, page organization, Bates numbering, and file-size reduction. OCR uses the system Tesseract installation. Excise can fill and flatten AcroForm fields and create new fields, but it has no text-editing feature and does not convert PDFs to other formats. It is therefore well suited to preparation, review, filing, and cleanup, not to rewriting a finished document or running a conversion pipeline.

Automation and development

The CLI supports batch workflows and stable JSON output, making repeatable processing easier to integrate into scripts. The project also supplies managed-code PDF core and rendering libraries, an Avalonia viewer control, and a C ABI over Excise.Core for other languages. Those components make Excise more interesting to developers than a desktop-only editor.

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 be treated as complete archival or trust validation. Dynamic XFA layouts are experimental, may omit or reposition content, and cannot be filled in Excise.

Pricing

There are no seat counts, usage quotas, trial terms, or renewal charges attached to this plan. Release packages are self-contained for 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; SHA-256 files are provided for verification.

Platforms

Excise supports Windows, macOS, Linux, and API usage. Packages target Windows 10/11 x64, Apple Silicon macOS, Ubuntu/Debian, and x64 or ARM64 Linux. The command-line interface and C ABI broaden its use in server or scripted environments.

Who it's for

Choose Excise for organizations and individuals that need permanent redaction, cleanup of document metadata and embedded material, and auditable batch processing without licensing cost. It also fits developers building PDF features around its libraries or JSON-producing CLI. Look elsewhere if your work depends on dynamic XFA forms, text editing, PDF conversion, JavaScript workflows, professional print production, or comprehensive signature-trust validation.

Pros and cons

• Pro: Redaction removes underlying text, images, and vectors instead of merely obscuring them.
• Pro: Metadata, attachments, JavaScript, thumbnails, and hidden layers are scrubbed by default, with removal reporting.
• Pro: unredact and audit provide focused checks for leakage and hidden overlay text.
• Pro: Free MIT-licensed software with desktop, CLI, batch, JSON, and library interfaces.
• Con: No text editing or PDF conversion, limiting it as an all-purpose document editor.
• Con: XFA filling is unavailable and dynamic layouts are experimental.
• Con: Signature inspection omits revocation and long-term validation checks.
• Con: Unsigned, non-notarized builds without auto-update add installation and maintenance responsibility.

Alternatives

Document Redaction Software is a useful comparison list for readers evaluating redaction-focused products. For a broader editor shortlist, see PDF editors.

• GroupDocs.Redaction is the better fit when you need a paid document-processing SDK with free-trial access and deployment across web, mobile, desktop, API, and self-hosted environments.
• Redact PDF AI suits readers who prefer a freemium service with prepaid page credits and broad web, mobile, and API availability.
• Docuflair Redact is aimed at paid, trial-based workflows with a 1,000-page monthly Basic plan and broad platform coverage.
• LocalRedact is another free, local option for API, self-hosted, and desktop deployments, released under AGPL-3.0-only.
• PDFRedaction fits web users seeking local processing, OCR, AI detection, image redaction, and a daily free-document allowance.
• Philter is worth considering for on-device redaction through a free personal and evaluation desktop plan.
• PineThink Redact targets macOS and Windows users who want a single-document free tier and an inexpensive premium upgrade.
• Redactable is a web alternative with three free documents followed by per-document payment.

Verdict

Excise is a strong choice for anyone who wants genuinely content-removing redaction, cleanup, and command-line auditing at no software cost. Its missing text editing and conversion, experimental XFA support, limited signature validation, and unsigned releases are the main reasons to choose a more specialized or managed alternative.