📝 utils

packages/utils/README.md

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+# ![@signpdf](https://raw.githubusercontent.com/vbuch/node-signpdf/master/resources/logo-horizontal.svg?sanitize=true)
+
+[![npm version](https://badge.fury.io/js/@signpdf%2Futils.svg)](https://badge.fury.io/js/@signpdf%2Futils)
+[![Donate to this project using Buy Me A Coffee](https://img.shields.io/badge/buy%20me%20a%20coffee-donate-yellow.svg)](https://buymeacoffee.com/vbuch)
+
+Utilities from and for the [@signpdf family of packages](https://github.com/vbuch/node-signpdf/) that tries to make signing of PDFs simple in Node.js.
+
+## Usage
+
+Used by the other `@signpdf` packages internally. Additionally, needed for **PAdES compliant signatures**"
+
+```js
+import { plainAddPlaceholder } from '@signpdf/placeholder-plain';
+import { SUBFILTER_ETSI_CADES_DETACHED } from '@signpdf/utils';
+
+const pdfToSign = plainAddPlaceholder({
+  ...,
+  subFilter: SUBFILTER_ETSI_CADES_DETACHED,
+});
+```
+
+## Notes
+
+* Feel free to copy and paste any part of this code. See its defined [Purpose](#purpose).