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feat(docs): optimize PDF via Ghostscript pdfwrite

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Add oo docs optimize for native-text PDFs (OO-friendly rewrite without
ocrmypdf overlay). Default ocr --force to false when text layer exists.

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
eSlider
2026-08-28 10:02:58 +01:00
co-authored by Cursor
parent ba8148a9e1
commit 6b3f40e1a1
3 changed files with 115 additions and 13 deletions
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cmd/oo/docs.go
+44 -5
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@@ -29,6 +29,7 @@ OCR a scan locally: oo docs ocr scan.pdf --md out.md
Structured OCR (hOCR→MD): oo docs hocr scan.jpg --md out.md --yaml out.yml`,
}
cmd.AddCommand(docsConvertCmd())
cmd.AddCommand(docsOptimizeCmd())
cmd.AddCommand(docsOCRCmd())
cmd.AddCommand(docsHOCRCmd())
cmd.AddCommand(docsAsMDCmd())
@@ -45,10 +46,11 @@ func docsToolsCmd() *cobra.Command {
RunE: func(cmd *cobra.Command, args []string) error {
t := docpipe.LookPath()
printObject(map[string]any{
"pandoc": strOrNil(t.Pandoc),
"ocrmypdf": strOrNil(t.OCRMyPDF),
"pdftotext": strOrNil(t.PDFToText),
"tesseract": strOrNil(t.Tesseract),
"pandoc": strOrNil(t.Pandoc),
"ocrmypdf": strOrNil(t.OCRMyPDF),
"pdftotext": strOrNil(t.PDFToText),
"tesseract": strOrNil(t.Tesseract),
"ghostscript": strOrNil(t.Ghostscript),
})
return nil
},
@@ -96,6 +98,43 @@ func docsConvertCmd() *cobra.Command {
return cmd
}
func docsOptimizeCmd() *cobra.Command {
var out string
cmd := &cobra.Command{
Use: "optimize PDF_PATH",
Short: "Rewrite PDF via Ghostscript (PostScript pdfwrite) for OO-friendly size/text",
Long: `Use for InDesign/iText PDFs with a good text layer — avoids ocrmypdf invisible
text overlays that break OnlyOffice DocEditor. Skips OCR; rewrites via gs pdfwrite.`,
Args: cobra.ExactArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
in := args[0]
t := docpipe.LookPath()
if out == "" {
base := strings.TrimSuffix(filepath.Base(in), filepath.Ext(in))
out = filepath.Join(filepath.Dir(in), base+".optimized.pdf")
}
if err := docpipe.EnsureDir(out); err != nil {
return err
}
chars, _ := t.PDFTextLayerChars(in)
if err := t.OptimizePDF(in, out); err != nil {
return err
}
outChars, _ := t.PDFTextLayerChars(out)
printObject(map[string]any{
"in": in,
"pdf": out,
"text_chars_in": chars,
"text_chars_out": outChars,
"note": "native text layer preserved; no OCR overlay",
})
return nil
},
}
cmd.Flags().StringVar(&out, "out", "", "output PDF (default: <name>.optimized.pdf)")
return cmd
}
func docsOCRCmd() *cobra.Command {
var out, mdOut, lang string
var force bool
@@ -140,7 +179,7 @@ func docsOCRCmd() *cobra.Command {
cmd.Flags().StringVar(&mdOut, "md", "", "write Markdown extraction to this path")
cmd.Flags().BoolVar(&writeMD, "markdown", false, "also write sibling .md next to OCR PDF")
cmd.Flags().StringVar(&lang, "lang", "eng", "OCR language(s) for tesseract/ocrmypdf")
cmd.Flags().BoolVar(&force, "force", true, "force OCR even if a text layer exists")
cmd.Flags().BoolVar(&force, "force", false, "force OCR even if a text layer exists (default: skip when pdftotext finds enough text)")
return cmd
}