PDF Crop Marks Generator
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A free, console-based Windows tool that adds professional-quality crop marks, CMYK registration targets, and color control strips to existing PDF files.
Unlike many tools that add simple boxes or rectangles, this generator produces precise, prepress-grade marks — suitable for offset, digital, and packaging workflows.
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FEATURES
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- Add crop marks (adjustable length, offset, thickness)
- Add CMYK registration marks (circle + crosshair)
- Add GRACoL/SWOP-style color strips (top, bottom, or both)
- Define layout grids (rows × columns) for multi-object pages
- Supports units: pt, mm, cm, in, ft, yd, m
- Supports password-protected PDFs (owner/user passwords)
- Clean, interactive console prompts with defaults
- Live progress bar while processing
- Fully self-contained EXE (portable)
- Scrub meta: Removes `/Producer` entry from Info Dictionary and XMP metadata
- Flatten options: Flatten forms, annotations, text, or all elements
- Place crop marks, registration marks, and color bars on separate layers
- Normalize page rotation automatically for consistent processing
- Detects and warns about digital signatures; option to flatten them into visual representations
- Flexible bleeds: Utilize margins as trimming bleeds when gutters are set to 0
- Support for very large sizes (tested on 2000 x 3000 inches)
- Customizable mark colors: Define crop mark colors using CMYK, RGB, or predefined options (C, M, Y, K, R, G, B)
- Strip document metadata and XMP metadata during processing
- Lucida Console font setting for enhanced console readability
- Centered console window with customizable buffer/window sizes
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REQUIREMENTS
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- No installation needed (just unzip and run)
- .NET Framework 4.5 or later
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USAGE
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1. Run `PDFcm.exe`
2. Follow the prompts:
- Input/output file path
- Units of measurement
- Margins and gutter sizes
- Grid layout (rows and columns)
- Crop mark options
- Registration mark and color strip inclusion
- Flatten options (forms, annotations, text, or none)
- Layer placement for marks (separate layers or combined)
3. Wait for processing to complete
4. The output file will be saved at the path you specify
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EXAMPLE SESSION
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*** PDF Crop Marks Generator ***
Input PDF path (leave blank for 'Original.pdf'):
Output PDF path (leave blank to use input filename):
Choose unit for layout values (pt, mm, cm, inch): mm
Are all page margins equal? (y/n): y
Left page margin (mm): 3
Horizontal gutter (mm): 2
Vertical gutter (mm): 2
Number of horizontal elements: 2
Number of vertical elements: 2
Crop mark length (points) [default: 9]: 12
Crop mark offset (points) [default: 6]: 6
Crop mark thickness (points) [default: 0.25]:
Add registration marks on left & right? (y/n): y
Add GRACoL/SWOP control strip? (t=top, b=bottom, tb=both, n=none): tb
Flatten options? (all, annotations, forms, text, none): none
Place all marks (crop, registration, color) on separate layers? (y/n): y
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SUPPORT
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For updates, issues, or discussion, visit:
https://sourceforge.net/projects/pdfcropmarks/
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TAGS
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PDF, Crop Marks, CMYK, Registration Marks, Color Strip, Prepress, Print-Ready, 64-bit, 32-bit, PDF Imposition, Console, Packaging, Digital Printing, Offset Print, GRACoL, SWOP, Metadata Scrubbing, Layer Support, Large Format, Billboard Sizes, Interactive Prompts