Print Industry Standards
Understanding industry standards ensures your files work with any professional printer worldwide. This reference covers PDF formats, color standards, and best practices.Industry standard: PDF/X-1a with ISO Coated v2 300% profile is accepted by 95%+ of commercial printers worldwide.
PDF/X Standards
PDF/X Format Comparison
| Standard | Release | Color | Transparency | ICC Profiles | Use Case |
|---|---|---|---|---|---|
| PDF/X-1a | 2001 | CMYK only | Not allowed | Single embedded | Most compatible, safest |
| PDF/X-3 | 2002 | CMYK, RGB, Lab | Not allowed | Multiple allowed | International color workflows |
| PDF/X-4 | 2008 | CMYK, RGB, Lab | Allowed | Multiple allowed | Modern, advanced features |
| PDF/X-5 | 2010 | All | Allowed | External references | Multi-file workflows |
- PDF/X-1a (Recommended)
- PDF/X-3
- PDF/X-4
- PDF/X-5
PDF/X-1a:2001/2003
Most widely accepted print standardSpecifications:- Color: CMYK (+ spot colors)
- Transparency: Not allowed (flattened)
- ICC Profile: Single profile embedded
- Fonts: Must be embedded
- Image resolution: Defined (typically 300 DPI)
- Bleed: Required information included
- Trim box: Required
- ✅ Universal acceptance
- ✅ Guaranteed compatibility
- ✅ No ambiguity (all flattened)
- ✅ Works with all printers
- ❌ CMYK only (no RGB)
- ❌ No transparency support
- ❌ Single ICC profile only
- Commercial printing
- When unsure of printer’s capabilities
- Maximum compatibility needed
- Budget/online printers
ISO Print Standards
ISO 12647 (Printing Standards)
The global standard for offset printingISO 12647-2 (Offset Printing)
ISO 12647-2 (Offset Printing)
Standard for sheet-fed and web offset printingSpecifications:
- Scope: Offset lithography
- Defines: Ink colors, densities, dot gain, paper types
- Revision: Currently ISO 12647-2:2013
- Type 1: Premium coated (115 g/m²+)
- Type 2: Standard coated (115 g/m²+)
- Type 3: LWC (lightweight coated)
- Type 4: Uncoated white (115 g/m²+)
- Type 5: Uncoated yellowish (newsprint)
- Cyan: Specific Pantone equivalent
- Magenta: Specific Pantone equivalent
- Yellow: Specific Pantone equivalent
- Black: Specified density
- FOGRA39 (ISO Coated v2) - Type 1/2 paper
- FOGRA52 (PSO Uncoated v3) - Type 4 paper
ISO 15930 (PDF/X Standards)
ISO 15930 (PDF/X Standards)
Defines PDF/X format specificationsParts:
- ISO 15930-1: PDF/X-1a:2001
- ISO 15930-3: PDF/X-1a:2001 + PDF/X-3:2002
- ISO 15930-4: PDF/X-1a:2003 (revised)
- ISO 15930-6: PDF/X-3:2003 (revised)
- ISO 15930-7: PDF/X-4 (2008)
- ISO 15930-8: PDF/X-5 (2010)
ISO 3664 (Viewing Conditions)
ISO 3664 (Viewing Conditions)
Standard for graphic arts viewingSpecifications:
- Color temperature: D50 (5000K)
- Illuminance: 2000 lux for critical viewing
- Surround: Neutral gray (L* 60)
- Consistent color judgment
- Match print proofs to press sheets
- International standard viewing
ISO 216 (Paper Sizes)
ISO 216 (Paper Sizes)
International paper size standard (A series)Defines:
- A series (A0 to A10)
- B series (B0 to B10)
- C series (envelopes)
- A4: 210 × 297 mm
- A5: 148 × 210 mm (A4 folded in half)
Color Management Standards
ICC Specifications
- ICC Profile Version 4
- FOGRA Standards
- GRACoL Standards (USA)
- Japan Color
Current ICC standardVersion: ICC.1:2010 (v4.3)Features:
- Improved color accuracy
- Better spectral data
- Enhanced perceptual rendering
- Wide gamut support
- Input (scanner, camera)
- Display (monitor)
- Output (printer)
- Device Link
- Abstract
- Color Space
File Specifications Standards
Resolution Standards
- Image Resolution
- Line Screen (LPI)
- Bleed Standards
- Color Accuracy Tolerances
DPI/PPI standards for print
Rule of thumb: 300 DPI for standard commercial printingToo low: Pixelation, poor quality
Too high: Larger files, no visible improvement, longer processing
| Use Case | Minimum DPI | Recommended DPI | Maximum Useful |
|---|---|---|---|
| Offset printing | 200 | 300 | 600 |
| Digital printing | 200 | 300 | 600 |
| Large format | 100 | 150-200 | 300 |
| Billboards | 25-50 | 50-100 | 150 |
| Newspapers | 150 | 200 | 300 |
| Fine art | 300 | 400-600 | 1200 |
| Screen printing | 150 | 200-300 | 400 |
Typography Standards
Font Embedding Requirements
Embedding Standards
Embedding Standards
PDF/X requirements for fontsPDF/X-1a:
- ✓ All fonts must be embedded
- ✓ Subset embedding allowed
- ✓ Type 1, TrueType, OpenType supported
- ✗ Font references not allowed
- Embeds only used characters
- Reduces file size (80-95% smaller)
- Maintains perfect quality
- Recommended practice
- Convert text to vector paths
- No font embedding needed
- Larger file size
- No longer editable as text
- Last resort for licensing issues
Minimum Text Sizes
Minimum Text Sizes
Readable minimum sizesStandard reading distance (12-18”):
Legal minimums:
| Text Type | Minimum Size | Recommended |
|---|---|---|
| Body text | 8 pt | 9-12 pt |
| Fine print | 6 pt | 7-8 pt |
| Captions | 7 pt | 8-9 pt |
| Headlines | 14 pt | 18-24 pt |
| Business card | 7 pt | 8-10 pt |
- Most countries: 6 pt minimum for contracts
- Some jurisdictions: 8 pt minimum
- Multiply by viewing distance in feet
- 10 ft viewing: 10× larger minimum
Overprinting Black Text
Overprinting Black Text
Industry standard practiceStandard: Black text always overprintsSpecifications:
- Pure black (K100) only
- Text size: All sizes
- Rich black: Should NOT overprint (knockout)
- Prevents white gaps from registration
- Standard practice since offset printing
- Built into PDF/X standards
- Enable “Overprint black” setting
- Automatic for K100 text
- Verify in Acrobat Overprint Preview
Industry Quality Standards
G7 Certification
Gray balance calibration methodology- What is G7?
- G7 vs Traditional
- Finding G7 Printers
G7 = Gray Balance calibration methodNot a profile: Calibration methodologyPrinciple:
- Neutral gray reproduction as primary goal
- CMYK balance creates neutral grays
- Consistent across different devices
- Press calibration
- Proof matching
- Color consistency
- Device-to-device matching
- Consistent color appearance
- Reduced variation
- G7 Master Printer
- G7 Expert
- Regular recertification required
FOGRA Certification
European color standard certificationFOGRA Certification Levels
FOGRA Certification Levels
Printer certification levels:FOGRA Cert: Basic certification
- Meets FOGRA color standards
- Regular testing
- Consistent output
- Complete process control
- ISO 12647-2 compliance
- Ongoing monitoring
- Predictable results
- Consistent quality
- International standards compliance
Characterization Data
Characterization Data
FOGRA characterization datasets:What they are:
- Reference measurements
- Specific printing conditions
- Basis for ICC profiles
- FOGRA39: Coated paper, offset
- FOGRA51: Coated paper, updated standard
- FOGRA52: Uncoated paper
File Delivery Standards
Prepress Requirements
1
PDF Format
Standard: PDF/X-1a (safest)Alternative: PDF/X-3 or PDF/X-4 (if printer supports)Requirements:
- High-quality print preset
- All fonts embedded
- Images at 300 DPI minimum
- Bleed included
- Crop marks visible
2
Color Space
Standard: CMYK with ICC profile embeddedProfile: Match printer’s specification
- ISO Coated v2 300% (if unknown)
- GRACoL 2006 (USA)
- Or printer-specified profile
3
File Naming
Best practices:Avoid:
- Spaces (use underscores or hyphens)
- Special characters
- Generic names (“final.pdf”, “new.pdf”)
- Project identifier
- Size/type
- Date
- Version number
4
Metadata
PDF should include:
- Trim box dimensions
- Bleed box dimensions
- Page orientation
- Output intent (ICC profile)
- Creator (your contact info)
5
Delivery Method
File transfer options:Small files (< 25 MB):
- Email attachment
- WeTransfer
- Google Drive link
- Dropbox link
- Printer’s FTP server
- Cloud storage link
- Physical delivery (USB)
Quality Control Standards
Preflight Checks
Industry-standard preflight checks:- PDF format: PDF/X-1a (or specified)
- Color space: CMYK (no RGB unless specified)
- ICC profile: Embedded and correct
- Fonts: All embedded (check Properties)
- Images: 300 DPI minimum
- Bleed: 0.125” (3 mm) on all edges
- Crop marks: Visible and correct
- Trim box: Correctly defined
- Text: Pure black (K100) for readability
- Overprint: Black text overprints
- TAC: Within profile limits
- File size: Within printer’s limits
- Page count: Correct
- Orientation: Correct
- Adobe Acrobat: Preflight tool
- Print for Figma: Built-in checks
- Printer’s preflight (online services)
International Standards Organizations
ISO
International Organization for StandardizationStandards:
- ISO 12647 (printing)
- ISO 15930 (PDF/X)
- ISO 216 (paper sizes)
ICC
International Color ConsortiumStandards:
- ICC color profiles
- Color management specifications
FOGRA
Graphic Technology Research AssociationRegion: EuropeStandards:
- FOGRA characterization data
- PSO certification
- Color testing
IDEAlliance
International Digital Enterprise AllianceRegion: North AmericaStandards:
- GRACoL
- SWOP
- G7 methodology
Compliance Checklist
Before sending to printer:PDF Compliance
PDF Compliance
- PDF/X-1a format (or specified format)
- PDF validates with Acrobat Preflight
- No errors in preflight report
- All warnings reviewed and acceptable
Color Compliance
Color Compliance
- CMYK color space (unless RGB specified)
- ICC profile embedded
- Profile matches printer’s spec
- No spot colors (unless intentional)
- TAC within limits
- Black handling appropriate
Content Compliance
Content Compliance
- All images 300 DPI minimum
- All fonts embedded
- No missing fonts reported
- Text readable (minimum 6-7 pt)
- All content within trim + bleed
- Safety zones respected
Technical Compliance
Technical Compliance
- Bleed: 0.125” (3 mm) all sides
- Crop marks present
- Trim box correct dimensions
- File size within printer’s limit
- File naming clear and descriptive
- Correct version (not old file)
Learn More
ICC Profiles Reference
Complete ICC profile specifications
Paper Sizes Reference
Standard paper dimensions worldwide
Preflight Checklist
Complete quality control guide
Export Settings
Configure compliant export settings
Following standards = fewer problems: Industry standards exist because they work. Following them ensures your files work with any professional printer worldwide.