Pro Printing Basics
What Pro Printing Means
Pro printing is for sending your deck to a print shop or professional printer.
Instead of arranging multiple cards on a home-printer sheet, I Love Cards generates one print-ready card page per side with the geometry that print workflows expect.
The 3 Concepts You Need to Know
1. Trim size
This is the final finished card size after cutting.
Example:
- Poker card: 63.5 × 88.9 mm
2. Bleed
Bleed is extra artwork that extends past the final cut edge.
Why it matters:
- cutting is never perfectly exact
- bleed prevents thin white edges after trimming
A common default is:
- 3 mm bleed applied equally on all sides
3. Crop marks
Crop marks are the small lines outside the artwork that show where the final cut should happen.
Important:
- they are useful for humans checking the file
- many professional printers add their own marks during imposition
- some print shops only care that the PDF page boxes are set correctly
What I Love Cards Can Export for Pro Printing
Our Pro PDF export can generate files with:
- proper TrimBox
- proper BleedBox
- CropBox
- optional visible crop marks
- crop marks in registration color
- one custom bleed value applied equally on all sides
What These Boxes Mean
You do not need to memorize this, but it helps to know the basics:
- TrimBox = the final card size
- BleedBox = the final card size plus bleed
- CropBox = the visible page region used by many PDF viewers
These boxes are machine-readable PDF geometry. They are often more important to a print shop than the visible crop marks.
Recommended Default for Most Print Shops
If your supplier does not specify anything unusual, start with:
- Pro PDF export
- 3 mm bleed
- crop marks enabled
- your final card size set correctly
This is a strong general-purpose print-ready setup.
When to Disable Crop Marks
You can disable visible crop marks when:
- the printer says they only need correct page boxes
- the printer will impose and add their own marks
- you want the cleanest possible supplied PDF
The page boxes can still be correct even without visible crop marks.
When to Change Bleed Size
Use a custom bleed only if your supplier asks for it.
Examples:
- 3 mm is common in many print workflows
- some printers may ask for a larger bleed
- some special products may use a non-standard value
If in doubt, ask your supplier for:
- the required bleed value
- whether they want visible crop marks
- whether they only need TrimBox / BleedBox
Simple Supplier Message
You can send this:
Hi, we can generate print PDFs with proper TrimBox / BleedBox / CropBox, with or without visible crop marks, and with one custom bleed value applied equally on all sides (default 3 mm). Could you confirm exactly what your workflow requires?
Practical Advice
Before placing a large order:
- Export one sample card
- Print a test page at home
- Make sure your printer dialog is set to no scaling
- Measure with a ruler the final card size using the crop marks as a guide
When you print the test page:
- disable any automatic scaling: use Actual size / 100% if your printer dialog offers that option
- measure the final card size at the crop marks / trim area, not at the outer bleed edge
That small check can save a lot of time and cost.
Next Step
If you want the full technical explanation of all Pro printing options in I Love Cards, read: