Open-source licences

ZypCRM’s tools are built on open-source software. We are grateful to the authors and comply with each licence. All components below are used unmodified unless stated, and their source code is available at the links given.

Document and PDF

ComponentUsed forLicence
pdf-libCreating and editing PDFs (merge, split, organise, sign, number, watermark, image to PDF)MIT
PDF.js (Mozilla)Rendering PDF pages to images and extracting textApache-2.0
qpdf via qpdf-wasmAES-256 encryption, removing known passwords, lossless PDF optimisationApache-2.0

Images and vectors

ComponentUsed forLicence
VTracer (Vision Cortex)Tracing raster images into SVG pathsMIT / Apache-2.0
heic2anyDecoding iPhone HEIC photos where the browser cannotMIT (bundles libheif, LGPL-3.0 – source)
exifrReading photo metadataMIT
qrcodeGenerating QR codesMIT

AI models and runtimes

ComponentUsed forLicence
Transformers.js (Hugging Face)Running models in the browserApache-2.0
ONNX Runtime Web (Microsoft)Model inference engine (WebAssembly / WebGPU)MIT
MODNet (ONNX build)Fast background removalApache-2.0
BiRefNet (ONNX build)High-quality background removalMIT
MediaPipe Face Detector (Google)Finding faces for Blur Faces and Passport PhotoApache-2.0

Data and text

ComponentUsed forLicence
SheetJS Community EditionReading Excel and spreadsheet filesApache-2.0
markedMarkdown to HTMLMIT
DOMPurifySanitising HTML and SVGApache-2.0 / MPL-2.0
fflateCreating ZIP downloadsMIT

Fonts

FontUsed forLicence
Plus Jakarta SansLogo and headingsSIL Open Font License 1.1
Great Vibes, SacramentoTyped signaturesSIL Open Font License 1.1
Homemade AppleTyped signaturesApache-2.0

Website

Built with Astro (MIT). Full licence texts are available from each project’s repository linked above.

Cookie settings

Choose which optional technologies may be used on this browser. Your choice is saved on this device only (in local storage) and is sent to Google using Consent Mode. Files you process are never uploaded, whatever you choose.

Remembers your theme and this consent choice, and lets the site work offline. Always on; nothing is shared.

Lets Google store and read cookies to serve, cap and measure ads, and receive ad-related data about your visit (ad_storage, ad_user_data). If off, Google may still show limited, non-personalised ads without cookies.

Lets ads be tailored to your interests (ad_personalization). Requires Advertising.

Allows privacy-friendly usage statistics (analytics_storage). We do not run analytics today; this stays off unless you allow it.