Best fit for a first graded PDF release
- Put CLO on the shortlist if you need to edit size-specific grading values and review the pattern across sizes in 2D.
- Compare Optitex when 2D grading and 3D garment visualization belong in the same technical workflow.
- Compare AccuMark, Modaris, or TUKAcad when a production partner, marker room, or factory CAD workflow shapes the handoff.
- Validate the size chart and actual fit separately from the software’s visual review.
For a solo patternmaker preparing a first downloadable pattern, CLO is the clearest match among these five for editing grade values and reviewing a size range. CLO’s grading editor documents edits based on a selected size, and CLO 2026.1 adds a single-window review of 2D pattern and graphic placement across grading sizes.
A PDF release needs a sound size chart, editable grade rules, a way to inspect the range, and a reliable customer-facing file. A factory handoff adds the partner’s required CAD format, units, grading data, and production steps.
What to compare before choosing grading software
Start with the work you need the software to show and change. Prioritize per-size grade-rule control, visible size-to-size differences, measurements you can check, and a clear route from your working pattern to the file your customer or production partner needs.
Data table · Scroll horizontally to see all columns. Arrow keys work when focused.
| Selection criterion | For a PDF-first pattern seller | When a factory handoff is involved |
|---|---|---|
| Grade-rule editing | Edit a point or measurement for each size, and keep a record of the intended size chart and base pattern. | Use the buyer’s stated grading conventions and agreed delivery format and units as the handoff specification. |
| Range review | Compare the base size with the smallest, middle, and largest sizes, then inspect any size where proportions change noticeably. | Include the partner’s required verification and approval steps in the review. |
| Measurement check | Compare key pattern measurements with the size chart and your design ease. | Follow the buyer’s measurement and construction specifications. |
| File handoff | Prepare a clearly labelled, correctly scaled pattern customers can print and assemble. | Match the partner’s accepted CAD format, unit settings, and production data. |
| Fit validation | Test a sample of the range on bodies that reflect the intended customers. | Include fit and construction approval in the production sample process. |
A University of Minnesota record for Optimized pattern grading describes a study that compared traditionally graded and fit-to-shape patterns using measurements and visual assessment on participants representing Misses sizes 6–20. The study involved a sheath dress, and its largest difference appeared between sizes 14 and 16. Its practical implication was to use multiple fit modes for ranges wider than five sizes, with fit models positioned near the middle of groups spanning no more than two sizes up or down.
A separate pattern-grading accuracy study describes combining measurement sheets from three buyers, grading patterns under varying parameters, and assessing the resulting pattern measurements. For a solo seller, the practical version is to build a small test set: use the actual size chart, enter the intended grade values, and compare measured pattern points across the range before building the retail files.
The partner’s specification becomes a selection requirement as soon as a factory enters the workflow. URBN’s apparel technical manual says its vendor guidance covers fit, quality, garment testing, and minimum construction requirements, and directs vendors to its standards and guides. As one delivery example, Garment Process says it supplies DXF and PLT pattern files when required, with technical specifications agreed for the project. Those are vendor-specific deliverables, so confirm the actual target rather than assuming one format fits every factory.
When CLO fits a first graded PDF workflow
CLO suits a solo seller who wants direct control over grading values and a dedicated way to review the size range. In CLO’s Set Grading manual, the user chooses a size as the basis for an edit, selects a pattern outline or point, and enters the value in the Property Editor. The manual also describes setting distances from the base-size point for each size and displaying the X and Y distances, which helps make the rule behind a graded point inspectable.
CLO announced 2D Grading Review in CLO 2026.1 on August 13, 2026. The feature compares and reviews 2D pattern and graphic placement across all grading sizes in one window. For a digital pattern seller, that supports a practical sequence: edit a rule, inspect how the pattern changes across the range, then measure the important points before preparing customer files.
CLO’s DXF import and export guide lists DXF-AAMA, DXF-ASTM, and Standard DXF export. The user can export grading information in the DXF or separately as a Rule File, and only one size group can be selected per file. That gives a seller a concrete handoff option when a partner requests those DXF types. It also makes size-group packaging part of the export plan. For a retail sewing PDF, treat page layout, scale, labels, and test printing as a separate publishing task from grade editing and 2D review.
When to compare Gerber AccuMark
AccuMark belongs on the shortlist when your pattern work connects to a production room, marker making, or a factory’s established CAD workflow. Gerber’s AccuMark Made-to-Measure overview describes the software as covering pattern design, grading, marker making, and production planning. It also lists Batch Processing for automating order, plot, and cut generation, which speaks to a production pipeline rather than PDF publishing alone.
AccuMark can also produce full-scale PDF pattern output. Gerber’s AccuMark 12.2 release notes say Save As 1:1 creates a full-scale digital print file from a piece. Selecting Save As Display can include details such as seam allowance, graded nest, drill holes, and notches. A seller serving home sewists can value that output, while a factory-facing seller may value the wider pattern, marker, and planning workflow.
The same 12.2 notes give an important DXF handoff check: Standard DXF export can be set to centimeters or millimeters, but the file contains values without the selected unit. Gerber says the sender must communicate the correct unit for import. A test exchange with your production partner should therefore include both the file and an explicit unit declaration.
When Optitex suits 2D and 3D review
Optitex fits a seller who wants to develop sizes in 2D and inspect garment visualization in 3D. Its 2D/3D CAD product description describes grading a base or sample-size pattern into additional sizes, then comparing lengths and viewing results across the range. The same product material describes virtual samples in multiple sizes with a draped result in a 3D environment.
Optitex’s O/26 release information adds a more measurement-led workflow: the Dynamic Measurement Chart can import Excel-based measurement data to create pattern and PDS files, synchronize measurement selections with grading-table dialog tables, and generate all measures in one action. Those functions are relevant when a seller already maintains a measurement chart or wants to connect grading decisions to measurements.
For a first consumer PDF, Optitex is most compelling when its wider 2D/3D review workflow will be used in the product-development process. If the immediate need is only to edit grade values and inspect the 2D range, compare those exact tasks in a trial before adopting the broader workflow.
When Lectra Modaris makes sense
Modaris is worth evaluating when grading sits inside a larger apparel-development process with pattern verification and pre-production work. Lectra’s Modaris product listing describes it as a patternmaking product for garment development. Lectra’s Modaris V6R1 release announcement, dated March 16, 2009, documents a workflow covering pattern creation and finalization, industrialization, grading, verification, and pre-production. The announcement also discusses pattern-information exchange for collaborative development.
For a solo seller, Modaris becomes a stronger candidate when an existing apparel team or production partner already works in the Lectra environment.
When to evaluate TUKATECH
TUKAcad has a direct production-room orientation. Tukatech describes TUKAcad as a CAD room for pattern making, grading, and marker making, with production patterns, size grading, and marker preparation in one workflow. Tukatech lists digital pattern making, grading, and marker making starting at $19 per month. That makes TUKAcad a useful candidate when your work includes pattern production and marker preparation.
Tukatech’s TUKA APM announcement describes APM as an add-on module to TUKAcad, available through a cloud-based subscription. It says the workflow can generate a 2D CAD pattern from measurements with grade rules and send the pattern to TUKAmark for a costing marker. The announcement also says TUKA APM can generate 3D samples when connected with TUKA3D. Those connected steps matter most when the seller’s work is moving into apparel production, rather than when the immediate deliverable is a printable pattern for home sewing.
A practical check before releasing the size range
Use the same sample garment and size chart to test each candidate. That gives you a direct way to compare editing, review, measurements, and file preparation without relying on feature names alone.
- Set the size chart and base pattern. Record the body measurements, finished garment measurements, and intended ease for the design. Keep the base pattern tied to the size chart version used to create it.
- Enter and inspect the grading rules. Pick several points that control shape, such as a shoulder, armhole, waist, hip, or hem point. In CLO, for example, select the size that anchors the edit, enter the point’s grading value, and review the per-size distances in the grading table.
- Review the whole range. Compare the base, smallest, middle, and largest sizes, then inspect intermediate sizes around points where the silhouette or proportions change. CLO 2026.1’s 2D Grading Review provides a single-window view across grading sizes; Optitex documents range comparisons and 3D visualization.
- Check measurements against the chart. Measure the pattern at corresponding points for every size and compare those values with the intended finished measurements and ease.
- Fit representative sizes. Fit physical samples on people who reflect your intended customers. Prioritize the base size and both ends of your range, then record where fit changes across sizes.
- Build and test the final deliverable. For a customer-facing PDF, verify the page scale, tiling, piece labels, and assembly instructions with a printed test. For a factory handoff, export the partner’s requested format and units, then confirm that the receiving CAD workflow reads the graded pattern as intended.
Which tool should you choose?
Data table · Scroll horizontally to see all columns. Arrow keys work when focused.
| Your situation | Best first candidate | Why it fits |
|---|---|---|
| You are launching a downloadable pattern and want editable grade values plus a clear 2D review across sizes. | CLO | The CLO grading manual documents size-based edits, and CLO 2026.1 documents single-window review of 2D pattern and graphic placement across grading sizes. |
| Your work includes marker making, production planning, or a factory CAD handoff. | Gerber AccuMark | Gerber’s AccuMark overview describes pattern design, grading, marker making, and production planning; its 12.2 release notes document full-scale PDF output. |
| You want size grading, 2D verification, and 3D garment visualization in the same development workflow. | Optitex | Optitex’s 2D/3D product description describes base-size grading, range comparisons, and 3D visualization; its O/26 release information adds measurement-chart integration. |
| Your pattern work is part of an apparel team’s broader development and pre-production process. | Lectra Modaris | Lectra’s March 16, 2009 V6R1 announcement lists grading, verification, and pre-production in its model-development cycle. |
| You are moving toward production patterns, grade rules, and marker preparation within a connected CAD room. | TUKAcad, with TUKA APM if measurement-driven pattern generation fits | Tukatech lists TUKAcad’s pattern making, grading, and marker-making offer starting at $19 per month. It describes TUKA APM separately as a cloud-subscription add-on that generates patterns from measurements with grade rules and sends them to TUKAmark for costing markers. |
For the first PDF release, start with CLO if the decision turns on size-specific edits and cross-size 2D review. Move the shortlist toward AccuMark, Optitex, Modaris, or TUKAcad when the partner’s production system or the team’s 2D/3D development process determines the work.
FAQ
Does CLO 2026.1 review every graded size at once?
Yes. CLO describes 2D Grading Review as comparing 2D pattern and graphic placement across all grading sizes in a single window. Use it for visual review, then measure the points that determine fit.
Can a CLO DXF export carry grading information to a factory?
Yes. CLO’s DXF guide offers export with grading information in the DXF or separately as a Rule File, and supports DXF-AAMA, DXF-ASTM, and Standard DXF. The guide permits one size group per file, so agree on the required format, size group, and units with the receiving partner.
Is a broad size range ready after 2D or 3D review?
No. Add measurement checks and fit validation. The University of Minnesota study involved a sheath dress in Misses sizes 6–20 and identified its largest difference between sizes 14 and 16, illustrating why a range review should include measurements and representative fit checks.