Files
probo/pkg/esign/stamp.go
Sacha Al Himdani 4c57d201a4 Make license declarations consistently MIT
The source headers, LICENSE files, and license metadata had drifted
apart. Align the entire project to MIT:

- Convert every source-file header to the MIT text across all comment
  styles (Go, TS, TSX, JS, MJS, SQL, CSS, GraphQL, shell), including
  SPDX-License-Identifier tags
- Set the root and cookie-banner LICENSE files to the MIT text with a
  "MIT License" title line
- Switch the package.json license fields, Docker image label, and
  cookie-banner README to MIT
- Update docs and the genmodels header generator accordingly
- Normalize copyright lines to a single format
  (Copyright (c) <year(s)> Probo Inc <hello@probo.com>.): unify the
  hello@getprobo.com and hello@probo.inc emails to hello@probo.com and
  the comma-separated years to a hyphenated range

Genuine third-party references are intentionally left untouched: the
Lucide icon attributions (Lucide is ISC) and the trivy dependency
license allowlist.

Signed-off-by: Sacha Al Himdani <sacha@probo.com>
2026-07-13 16:21:14 +02:00

50 lines
1.9 KiB
Go

// Copyright (c) 2026 Probo Inc <hello@probo.com>.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
package esign
import (
"bytes"
"fmt"
"github.com/pdfcpu/pdfcpu/pkg/api"
"github.com/pdfcpu/pdfcpu/pkg/pdfcpu/types"
)
func StampSignatureID(pdfData []byte, signatureID string) ([]byte, error) {
text := fmt.Sprintf("Electronic Signature ID: %s", signatureID)
desc := "fontname:Helvetica, points:9, pos:tl, rot:0, op:1.0, scale:1.0 abs, color:0.3 0.3 0.3, offset:10 -10"
wm, err := api.TextWatermark(text, desc, true, false, types.POINTS)
if err != nil {
return nil, fmt.Errorf("cannot create signature ID stamp: %w", err)
}
reader := bytes.NewReader(pdfData)
var buf bytes.Buffer
if err := api.AddWatermarks(reader, &buf, nil, wm, nil); err != nil {
return nil, fmt.Errorf("cannot stamp signature ID on PDF: %w", err)
}
return buf.Bytes(), nil
}