In surveying, architecture, and construction, printing to scale is essential for maintaining the accuracy of drawings, scale floor plans, and technical documents. Whether you're submitting planning applications, Land Registry plans or sharing measured surveys, a printed drawing must match its intended scale ratio — especially when printed on A4 or A3 paper.
In this guide, we'll walk you through how to print a PDF to scale, how to check scale accuracy, and how to avoid common mistakes. We'll also show you how to use tools like PDF-XChange Editor and our free print scale calculator to ensure your documents are spot on.
How to Print a PDF to Scale (Step-by-Step)
If you're using Adobe Acrobat Reader:
- Open your PDF drawing.
- Go to File > Print.
- Under Page Sizing & Handling, select "Actual Size" or set custom scale (e.g., 100%).
- Ensure the correct paper size is selected (A4, A3, etc.).
- Preview and click Print.
If you're using Preview:
- Open your PDF drawing.
- Go to File > Print.
- Under Resize, select custom and ensure it is set to 100%.
- Ensure the correct paper size is selected (A4, A3, etc.).
- Preview and click Print.
Tip: Never select “Fit” or “Shrink oversized pages” - this distorts the scale.
How to Check the Scale of a Drawing
Checking the scale and measurements in PDF XChange Editor:
- Open the PDF in PDF-XChange Editor.
- Go to Tools > Measuring Tools > Set Scale > Calibrate Measurement.
- Click between two known points (e.g. the scale bar).
- Specify the distance measured including units - 100.00m for instance and click OK.
- Check if it matches the intended scale (e.g. 10m at 1:100 = 100mm), your drawing is correctly scaled.
- Using the Distance Tool you can now see measure the distance between two points.
- As a bonus, you can also measure the area now you have set the scale Tools > Measuring Tools > Set Scale > Area Tool
Use Our Free Scale Ratio Calculator
If you have a printed plan and know how long a distance should be along with the measured distance with a ruler, you can calculate the scale ratio with our free tool: Click here to use the calculator. This works with different units too, so if you have a drawing with imperial measurements, you can enter these too!
Common Issues When Printing to Scale — And How to Avoid Them
| Problem | Solution |
|---|---|
| Drawing prints too small/large | Check PDF scaling settings |
| Scale bar doesn’t match | Print a test section and measure |
| Wrong paper size | Select A4 or A3 as required |
| Drawing appears faded | Print in greyscale or as image |
Print to Scale on A4 or A3 Paper
- Set scaling to 100% or Actual Size
- Ensure drawing is formatted for A4 or A3
- Double-check layout before printing
How to Check If Your Drawing Printed to Scale
- Print a section with a scale bar.
- Use a scale ruler or standard ruler to measure.
- Match the result to expected length (e.g., 10m at 1:100 = 100mm).
- Use a scale ruler PDF if needed.
Need Help Scaling a Plan?
What Plans Require a Scale Bar?
- Architectural drawings for council use
- Land Registry compliant plans
- Site Plans
- Some HMO plans
- Plans for interior design
Frequently Asked Questions
Can I print to scale using a home printer?
Yes - as long as the drawing is formatted to fit on A4 or A3 paper, and you set the scale to 100% or Actual Size in your printer settings.
What does “print to scale” mean?
It means the printed drawing reflects real-world measurements accurately according to a scale ratio (e.g., 1:100 = 1cm = 1m).
What if I only have the drawing as a PDF?
No problem. PDF viewers like Adobe Acrobat Reader or PDF-XChange Editor allow you to print PDFs to scale, as long as the original file is correctly scaled.
What is greyscale printing, and does it affect scale?
Greyscale printing simply removes colour - it does not affect the scale of your drawing. It's often used to save ink on technical documents.
What scale should I use for floor plans?
Common architectural scales include:
- 1:50 – for detailed floor plans
- 1:100 – for standard layouts
- 1:200 or 1:500 – for site plans
Use the scale that provides the best clarity on your chosen paper size.
Can I print to scale on a printer without A3 capabilities?
Yes, but you'll be limited to smaller-scale drawings (e.g., 1:200 or 1:500 on A4). Alternatively, split your drawing across multiple pages or use a print service.
Is 'Actual Size' the same as printing to scale?
Yes - selecting “Actual Size” (or setting scale to 100%) ensures the document prints without resizing, which maintains the original scale if the PDF was correctly set up.
What if my PDF drawing has no scale bar?
If there's no scale bar, look for a labelled dimension (e.g. a 5m wall). Measure it on the printed version, then calculate the ratio manually or use a scale calculator to determine the print scale.
Can I use a mobile device to check PDF scale?
You can view PDFs on mobile, but accurate scaling and printing require a desktop environment with print settings control.
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