How to Use KATAPATA
Follow the workflow from body measurements to an adjustable sewing sloper, browser saving, individual paid-sloper purchase, and printable full-size, A4 tiled, or US Letter tiled PDFs.
Prepare your measurements and device
Measure carefully
Prepare bust, waist, hip, back length, sleeve length, and any other measurements required for the sloper you want to create.
Use a current browser
KATAPATA runs in a web browser. Keep your browser updated for the most reliable operation.
PC recommended
Mobile devices can be used, but a larger PC screen makes detailed adjustment and full-sloper review easier.
Eight stages from measurements to output
Enter your body measurements
Enter the measurements requested for the pieces you plan to create.
- Enter bust, waist, back length, and sleeve length for bodice and sleeve slopers.
- Enter hip measurement when creating skirt or pants slopers.
- Choose centimeters or inches where available.
Review and adjust the bodice and sleeve
Generate the basic bodice and sleeve slopers, then move available adjustment points to refine the shape.
- Review the front and back bodice balance.
- Adjust shoulders, armholes, bust point, waist, and other available areas.
- Adjust the sleeve cap and sleeve width while checking the overall shape.
Review and adjust a skirt or pants sloper
When creating a bottom sloper, review the generated skirt or pants shape and make the available adjustments. Skip this stage when you only need the basic bodice and sleeve slopers.
- Check waist and hip balance.
- Review the front and back pieces together.
- The skirt sloper is ¥300.
- The pants sloper is ¥300.
Choose dart positions and distribution
Move the front or back bodice dart intake to selected positions when you need a dart-transfer sloper for pattern development.
- Front and back dart-transfer settings are handled separately.
- Choose the transfer positions and set the distribution.
- The front dart-transfer sloper is ¥400.
- The back dart-transfer sloper is ¥400.
Review the finished slopers
Review the basic bodice, sleeve, dart-transfer, skirt, and pants slopers. Paid slopers can still be previewed at this stage without purchasing.
- Check the front and back bodice and sleeve shapes.
- Preview any dart-transfer or bottom slopers you created.
- Return to an earlier stage when further adjustment is needed.
- Continue only after the sloper data is finalized.
Save to the browser before output
Select “Save This Data and Continue to PDF Output.” KATAPATA saves the current sloper data in the browser before opening the output screen or sending you to Checkout.
- The finalized pre-output data is stored in the browser.
- After reloading the page, select “Resume from Browser” to restore it.
- Browser resume works on the same device and browser.
- Also keep a downloaded KATAPATA data file as a backup.
Purchase only the paid sloper you need
Preview the paid sloper on the output screen, then select the matching product card and choose “Proceed to Purchase.” Stripe Checkout opens in a separate tab or window.
- Front dart transfer, back dart transfer, skirt, and pants are separate products.
- You do not need to purchase paid slopers you do not want.
- After payment, KATAPATA returns and marks only the purchased product as purchased.
- No KATAPATA account is required.
Export the PDF format you need
Basic front and back bodice slopers and the sleeve sloper can be exported for free. Paid slopers can be exported after the matching product has been purchased.
- Use the full-size PDF for large-format printing or a print service.
- Use the A4 tiled PDF for A4 paper.
- Use the US Letter tiled PDF for US Letter paper.
- Purchased slopers can be exported again from saved purchased data.
Choose the correct file for your purpose
For returning to the output flow
The browser save stores the finalized pre-output data on the same device and browser. Use “Resume from Browser” after reloading the page.
For backup, reopening, and editing
A downloaded KATAPATA data file stores the editable working state. Keep it as a backup and reload it when you want to continue or export again.
For printing
A PDF is the printable output. It cannot restore the sloper for further editing inside KATAPATA.
Three output formats
Full-size PDF
A single large page for large-format printers or professional print services.
A4 Tiled PDF
Divided across A4 sheets for printers using A4 paper.
US Letter Tiled PDF
Divided across US Letter sheets, commonly used in the United States and Canada.
Match the PDF format to the paper loaded in your printer: A4 PDF with A4 paper, or US Letter PDF with US Letter paper. Do not select “Fit to Page,” “Scale to Fit,” or similar automatic scaling options. Measure the printed test scale before assembling the pages.
Continue with the next guide
Create your first custom sloper.
The basic bodice and sleeve workflow, including adjustment, data saving, and PDF export, is free.
Open the Sloper Tool