add remove digital signature

Version-groups.md

@@ -1,52 +1,53 @@
-| Technology     | Ultra-Lite | Full |
-|----------------|:----------:|:----:|
-| Java           |     ✔️      |  ✔️  |
-| JavaScript     |     ✔️      |  ✔️  |
-| Libre          |            |  ✔️  |
-| Python         |            |  ✔️  |
-| OpenCV         |            |  ✔️  |
-| OCRmyPDF       |            |  ✔️  |
+| Technology | Ultra-Lite | Full  |
+| ---------- | :--------: | :---: |
+| Java       |     ✔️      |   ✔️   |
+| JavaScript |     ✔️      |   ✔️   |
+| Libre      |            |   ✔️   |
+| Python     |            |   ✔️   |
+| OpenCV     |            |   ✔️   |
+| OCRmyPDF   |            |   ✔️   |
 
-Operation                | Ultra-Lite | Full
--------------------------|------------|-----
-add-page-numbers         |     ✔️      |  ✔️
-add-password             |     ✔️      |  ✔️
-add-image                |     ✔️      |  ✔️
-add-watermark            |     ✔️      |  ✔️
-adjust-contrast          |     ✔️      |  ✔️
-auto-split-pdf           |     ✔️      |  ✔️
-auto-redact              |     ✔️      |  ✔️
-auto-rename              |     ✔️      |  ✔️
-cert-sign                |     ✔️      |  ✔️
-crop                     |     ✔️      |  ✔️
-change-metadata          |     ✔️      |  ✔️
-change-permissions       |     ✔️      |  ✔️
-compare                  |     ✔️      |  ✔️
-extract-page             |     ✔️      |  ✔️
-extract-images           |     ✔️      |  ✔️
-flatten                  |     ✔️      |  ✔️
-get-info-on-pdf          |     ✔️      |  ✔️
-img-to-pdf               |     ✔️      |  ✔️
-markdown-to-pdf          |     ✔️      |  ✔️
-merge-pdfs               |     ✔️      |  ✔️
-multi-page-layout        |     ✔️      |  ✔️
-overlay-pdf              |     ✔️      |  ✔️
-pdf-organizer            |     ✔️      |  ✔️
-pdf-to-csv               |     ✔️      |  ✔️
-pdf-to-img               |     ✔️      |  ✔️
-pdf-to-single-page       |     ✔️      |  ✔️
-remove-pages             |     ✔️      |  ✔️
-remove-password          |     ✔️      |  ✔️
-rotate-pdf               |     ✔️      |  ✔️
-sanitize-pdf             |     ✔️      |  ✔️
-scale-pages              |     ✔️      |  ✔️
-sign                     |     ✔️      |  ✔️
-show-javascript          |     ✔️      |  ✔️
-split-by-size-or-count   |     ✔️      |  ✔️
-split-pdf-by-sections    |     ✔️      |  ✔️
-split-pdfs               |     ✔️      |  ✔️
-compress-pdf             |            |  ✔️
-extract-image-scans      |            |  ✔️
-ocr-pdf                  |            |  ✔️
-pdf-to-pdfa              |            |  ✔️
-remove-blanks            |            |  ✔️
+| Operation              | Ultra-Lite | Full |
+| ---------------------- | ---------- | ---- |
+| add-page-numbers       | ✔️          | ✔️    |
+| add-password           | ✔️          | ✔️    |
+| add-image              | ✔️          | ✔️    |
+| add-watermark          | ✔️          | ✔️    |
+| adjust-contrast        | ✔️          | ✔️    |
+| auto-split-pdf         | ✔️          | ✔️    |
+| auto-redact            | ✔️          | ✔️    |
+| auto-rename            | ✔️          | ✔️    |
+| cert-sign              | ✔️          | ✔️    |
+| remove-cert-sign       | ✔️          | ✔️    |
+| crop                   | ✔️          | ✔️    |
+| change-metadata        | ✔️          | ✔️    |
+| change-permissions     | ✔️          | ✔️    |
+| compare                | ✔️          | ✔️    |
+| extract-page           | ✔️          | ✔️    |
+| extract-images         | ✔️          | ✔️    |
+| flatten                | ✔️          | ✔️    |
+| get-info-on-pdf        | ✔️          | ✔️    |
+| img-to-pdf             | ✔️          | ✔️    |
+| markdown-to-pdf        | ✔️          | ✔️    |
+| merge-pdfs             | ✔️          | ✔️    |
+| multi-page-layout      | ✔️          | ✔️    |
+| overlay-pdf            | ✔️          | ✔️    |
+| pdf-organizer          | ✔️          | ✔️    |
+| pdf-to-csv             | ✔️          | ✔️    |
+| pdf-to-img             | ✔️          | ✔️    |
+| pdf-to-single-page     | ✔️          | ✔️    |
+| remove-pages           | ✔️          | ✔️    |
+| remove-password        | ✔️          | ✔️    |
+| rotate-pdf             | ✔️          | ✔️    |
+| sanitize-pdf           | ✔️          | ✔️    |
+| scale-pages            | ✔️          | ✔️    |
+| sign                   | ✔️          | ✔️    |
+| show-javascript        | ✔️          | ✔️    |
+| split-by-size-or-count | ✔️          | ✔️    |
+| split-pdf-by-sections  | ✔️          | ✔️    |
+| split-pdfs             | ✔️          | ✔️    |
+| compress-pdf           |            | ✔️    |
+| extract-image-scans    |            | ✔️    |
+| ocr-pdf                |            | ✔️    |
+| pdf-to-pdfa            |            | ✔️    |
+| remove-blanks          |            | ✔️    |