Step-by-step · Autodesk AutoCAD
Stop getting rejected prints
from AutoCAD
One wrong setting in AutoCAD's plot dialog — Fit to Paper, wrong paper size, plotting from model space — and your entire permit set prints at the wrong scale. Here's the exact workflow to get it right the first time, every time.
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Why AutoCAD prints fail
These mistakes cost contractors a full day on-site
AutoCAD has one job: output your drawing at the exact scale you drew it. But three settings can silently destroy that scale — and you won't know until your prints are already on the job site.
Fit to Paper checked
Prints fail inspection
Your drawings print at the wrong scale. A 10-foot wall measures wrong on the print. Permit office rejects the set. You're reprinting — and waiting.
Plotted from Model space
Scale is wrong on every sheet
Model space has no sheet size. AutoCAD guesses. It almost always guesses wrong. Subcontractors pull wrong dimensions on-site. Change orders follow.
Wrong paper size selected
Entire set unusable
You order ARCH D, your PDF is ARCH C. Your drawings print at 75% size. Nothing scales correctly. The entire print run is wasted.
We catch these before printing. Every file is reviewed by a real print technician — scale verified, orientation confirmed, issues flagged — before a single sheet runs. You find out about problems before your prints, not after.
Who this is for
Built for the people who can't afford a reprint
General Contractors
Wrong-scale prints mean wrong measurements on-site. A framing crew working from a misscaled set costs you more than a reprint. Get it right before it ships.
Civil Engineers
Site plans and grading drawings at 1"=20' are unreadable if printed at the wrong scale. Permit submission fails. AutoCAD's ANSI D settings covered below.
Structural & MEP
Sub trades pulling dimensions from structural or MEP drawings need every measurement to be accurate. A CTB error that drops line weights below threshold makes drawings unreadable.
The Plot Workflow
Plot to PDF from AutoCAD — step by step
The standard workflow uses the PLOT command and the DWG To PDF plotter built into AutoCAD. This works in AutoCAD 2015 through current versions.
1
Switch to a Layout tab — not the Model tab
Click the Layout1, Layout2, or your project's named layout tab at the bottom of the AutoCAD window. Your title block and sheet border should be visible in the layout.
⚠️ Never plot for printing from the Model tab. Model space has no inherent sheet size. If you plot from Model space, you must manually calculate the correct scale from your drawing units to the paper size — a small error produces wrong-scale prints. Layout tabs are already configured with the correct sheet size and viewport scale.
2
Open the Plot dialog — type PLOT or Ctrl+P
Type PLOT in the command line or press Ctrl+P. The Plot dialog opens. If you see a simplified version, click the arrow in the lower-right corner to expand to the full dialog.
3
Select DWG To PDF.pc3 as the printer/plotter
Under Printer/Plotter → Name, select DWG To PDF.pc3. This plotter is built into AutoCAD — no additional software required. If you have Bluebeam installed, Bluebeam PDF is also a valid option and produces slightly smaller files.
✅ DWG To PDF produces vector PDF output — line weights are sharp at any print size. Avoid PDF-from-screenshot or image-based exports, which lose resolution at full scale.
4
Set Paper Size to your exact ARCH or ANSI size
Under Paper Size, select the correct size from the dropdown. Common selections:
ARCH D (24×36)
Most common for construction documents
ARCH E (36×48)
Large commercial, structural
ARCH C (18×24)
Half-size, reduced sets
ANSI D (22×34)
Engineering, civil drawings
⚠️ This must exactly match the size you order from Azul Prints. If you order ARCH D (24×36) but your PDF is ARCH C (18×24), your drawings will print at the wrong size.
5
Set Plot Scale to 1:1 — never "Fit to Paper"
Under Plot Scale: select 1:1 from the dropdown. Make sure "Fit to Paper" is unchecked. When plotting from a Layout tab that is correctly set up, 1:1 outputs the drawing at the correct scale.
⚠️ "Fit to Paper" is the #1 cause of permit rejections from AutoCAD. It rescales your drawing to fill whatever paper size the PDF printer defaults to — usually letter or tabloid. Your drawing scale is gone. A 1/4"=1'-0" set becomes unusable. The permit office rejects it. You reprint. You lose a day.
✅ If you're unsure whether your layout is set up correctly, draw a line you know the length of in model space. After plotting, measure it on the print with a scale ruler — it should match your title block scale notation.
6
Select a Plot Style Table (CTB file)
Under Plot Style Table, select the appropriate CTB file. See the CTB reference section below for which to choose. For most construction document printing: monochrome.ctb.
7
Check "Plot to File" and set the output path
Check "Plot to File" under the Printer/Plotter section. This outputs a PDF file rather than sending to a physical printer. Name your file and choose a save location. Click OK to plot.
8
Verify the PDF before uploading
Open the exported PDF. Check in your PDF viewer: Page size should match your selected paper size exactly. Orientation should be landscape for wide drawings. Line weights should be visible and not hairlines. Use our free scale checker to verify dimensions automatically.
CTB Reference
Choosing the right plot style table
CTB (color-based plot style) files control how AutoCAD object colors map to printed output. Selecting the wrong CTB is the most common cause of either wrong-color prints or missing line weights.
monochrome.ctb
All AutoCAD colors print as black. Use for standard B&W construction document sets. This is the default choice for 90% of blueprint printing jobs.
acad.ctb
Colors print as-drawn. Use when you want MEP system colors, elevation colors, or other color coding to appear on the print. Requires color printing.
Screening 100%.ctb
All objects print at full intensity. Useful as a fallback if monochrome.ctb produces unexpected results with custom line weights.
[Your firm's CTB]
Many firms maintain custom CTB files that enforce standard line weights by color. Use your firm's standard CTB if one exists.
💡
Can't find monochrome.ctb? It should be in your AutoCAD support files folder. Search for it: type OPTIONS in AutoCAD, go to Files tab → Plot Style Table Search Path. Navigate to that path in Windows Explorer — monochrome.ctb should be there. If it's missing, you can create a new CTB that maps all colors to black.
Paper Space vs Model Space
Why you must plot from Layout tabs
This is the concept that trips up newer AutoCAD users most often. Understanding it makes all the difference.
Model space (the Model tab)
Model space is where you draw your building at real-world size — 1 unit = 1 foot (or 1 inch, depending on your drawing units). There's no sheet border, no title block, no fixed paper size. When you plot from Model space, AutoCAD has to figure out how to fit an infinite canvas onto a specific sheet size, which is why the scale calculation is error-prone.
Paper space (Layout tabs)
Layout tabs represent a physical sheet of paper with your title block. Viewports within the layout show your model at a specific scale — set in the viewport properties as 1:48 for 1/4"=1', 1:96 for 1/8"=1', etc. When you plot a layout at 1:1, AutoCAD prints the sheet exactly as you see it — title block and all — at the correct drawing scale.
💡
Quick scale check: In your layout, double-click inside a viewport to enter model space within the viewport. Type ZOOM then type the scale ratio — e.g. 1/48xp for 1:48 (1/4"=1'). This sets the viewport scale. Lock the viewport so it can't be accidentally changed. Now plot the layout at 1:1 and your drawing will be at 1/4"=1'.
Common Mistakes
What goes wrong with AutoCAD print exports
Don't do this
✗ Check "Fit to Paper" — destroys scale
✗ Plot from the Model tab
✗ Select the wrong paper size
✗ Use acad.ctb for B&W printing
✗ Forget to check "Plot to File"
✗ Upload without verifying PDF dimensions
Do this instead
✓ Set Plot Scale to 1:1, never Fit to Paper
✓ Always plot from a Layout tab
✓ Match paper size to your print order exactly
✓ Use monochrome.ctb for B&W prints
✓ Check Plot to File and name your PDF
✓ Use our free scale checker to verify
Used by contractors, architects, and engineers nationwide
Upload your plans — we verify scale before printing
Not just a file upload. A real technician opens your PDF, checks scale against your title block annotation, confirms orientation, and flags anything that would cause a rejection or reprint — before a single sheet runs. ARCH D 24×36 from $3.00/sheet.
✓
Our guarantee: If your plans are printed incorrectly due to our error, we reprint and overnight ship at no cost. No arguments, no conditions.
Order before 12 PM EST — don't delay your job waiting on prints. Ships same day.
Frequently asked
Common questions about plotting blueprints from AutoCAD.
Switch to a Layout tab, type PLOT (Ctrl+P), select DWG To PDF.pc3, choose your ARCH or ANSI paper size (e.g. ARCH D 24×36), set Plot Scale to 1:1, select monochrome.ctb for B&W, check Plot to File, and click OK. Verify the resulting PDF's dimensions before uploading to Azul Prints.
Always plot from a Layout tab for professional printing. Layout tabs have predefined sheet sizes and viewport scales — plotting at 1:1 from a correctly configured layout always produces the correct scale output. Plotting from Model space requires manually calculating the correct scale from drawing units to paper size, which is error-prone and unnecessary if your layouts are set up correctly.
Three common causes: (1) Fit to Paper was checked — uncheck it and set Plot Scale to 1:1. (2) Your layout viewport scale doesn't match your intended drawing scale — check the viewport properties (double-click to enter the viewport, check the Custom Scale field). (3) You plotted from Model space without correctly calculating the scale — switch to a Layout tab.
Use monochrome.ctb. This maps all AutoCAD object colors (red, blue, green, etc.) to black on the printed output — standard for construction document sets. For color printing, use acad.ctb or your firm's color CTB. If you can't find monochrome.ctb, check your AutoCAD support files folder or create a new CTB that maps all colors to black.
Use the Publish command (type PUBLISH in the command line) or the Sheet Set Manager (SSM) for multi-sheet sets. Publish lets you select multiple layouts across one or more DWG files and export them as a single multi-page PDF. This is significantly faster than plotting sheets one by one and ensures consistent settings across all sheets.
Select "ARCH D (24.00 x 36.00 Inches)" from the Paper Size dropdown in the Plot dialog. This must exactly match the print size you order. If ARCH D doesn't appear in the dropdown, your selected plotter may need its paper size list updated — check the plotter configuration in the Plotter Manager.
Prints that won't get rejected on-site.
Used by GCs, architects, and engineers nationwide. Every file reviewed for scale before printing. ARCH D 24×36 from $3.00/sheet — same-day UPS. If we print it wrong, we overnight a reprint at no cost.
✓ Scale verified before printing
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✓ Ships same day before 12 PM
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