Explainer · dwg vs pdf for sharing drawings
DWG vs PDF for sharing drawings
By Saumyajit Maity · Published 28 Nov 2024 · Updated 10 Feb 2025
When a drawing has to leave your hands, you face a choice that has nothing to do with which is "better" and everything to do with who is receiving it and what they need to do. Send a DWG and you hand over a live, editable, measurable CAD drawing. Send a PDF and you hand over a fixed, flat, print-ready page that looks identical on every device but can't be meaningfully edited. The right answer flips depending on whether the recipient needs to keep working on the geometry or just needs to view, print or mark up.
This page lays out exactly when to send each, what you give away (or protect) with each choice, and how to plot a clean, correctly-scaled PDF out of AutoCAD. It's one of the most practical format decisions you'll make on any project.
The fundamental difference: live vs flat
A DWG is a living drawing. Every wall, door and dimension is an editable object at true scale, on a named layer, in real units. The recipient can snap to points, measure exact distances, turn layers on and off, and continue the work. It is the format CAD work actually happens in.
A PDF is the opposite: a fixed page that captures how the drawing looks at the moment you plotted it. It's portable and tamper-resistant — it looks the same everywhere and nobody can casually move a wall — but it carries none of the drawing's intelligence. You can view it, print it and add comments, but you can't pull a true measurement off it reliably or edit the geometry. That live-versus-flat split is the heart of the whole decision.
When to send a DWG
Send the DWG whenever the recipient needs to keep building on the drawing. A consultant who has to overlay their services onto your architecture, a colleague picking up the model, a structural engineer coordinating against your plan, a fabricator who needs the true geometry to cut from — all of them need the editable file, not a flat picture.
The trade-off is exposure and dependence. You hand over your actual geometry, layer structure and any embedded blocks, which the recipient can change, copy or reuse. You also need them to have DWG-capable software, though as covered elsewhere on the site, free viewers and compatible CAD programs make that a low bar. If the work has to continue in CAD, the DWG is the only choice that makes sense.
When to send a PDF
Send the PDF when the recipient only needs to see, print or comment — not edit. A client reviewing a layout, a planning authority receiving a submission, a contractor pulling a drawing to read on site, anyone who'll print to paper: a PDF serves all of them perfectly, and often better than a DWG would.
PDF also protects you. The recipient can't accidentally (or deliberately) alter the drawing, so the version you issued is the version they have. It opens on any phone, tablet or computer without CAD software. And it bundles a multi-sheet set into one tidy file with title blocks and borders intact. For issuing finished drawings to people who don't draft, PDF is usually the professional default.
What you lose with each format
Every choice gives something up. Sending a DWG gives up control: the recipient sees your raw construction, can edit it, and can extract your blocks and standards. For competitive or liability reasons that isn't always desirable, which is why some firms issue DWGs only under explicit agreement.
Sending a PDF gives up usefulness for anyone who needs to build on the work. Scaling off a PDF is unreliable, measurements aren't trustworthy to CAD precision, and the recipient can't reuse the geometry. A PDF also can't carry the layer intelligence or the editable blocks that make a CAD drawing valuable to another drafter. Knowing what each format costs you is what lets you choose deliberately rather than by habit.
How to plot a clean PDF from AutoCAD
Producing a good PDF is more than hitting print. Use the PLOT command (or PUBLISH for multiple sheets at once) and choose a PDF plotter such as "AutoCAD PDF (High Quality Print)". Plot from a paper-space layout where your title block and border live, not raw model space, so the output is a properly composed sheet.
Set the plot area to the layout or a defined window, pick the correct paper size, and choose a plot scale that matches the drawing's intended scale (1:50, 1:100 and so on) rather than "fit to paper", so dimensions on the PDF remain true to scale. Apply a sensible plot style (CTB/STB) so lineweights and colours come out right. The result is a crisp, correctly-scaled PDF that reads exactly as you intended on any screen or printer.
A simple decision rule
Boil it down to one question: does the person receiving this need to edit the geometry? If yes — they're drafting, coordinating or fabricating — send the DWG. If no — they're reviewing, approving, printing or commenting — send the PDF. That single test resolves the overwhelming majority of real cases.
A common best-practice on live projects is to issue both: the PDF as the official, fixed record of what was issued (the thing everyone reads and approves), and the DWG only to the specific parties who genuinely need to work on it, often under a defined exchange agreement. If you're sharing one of the free blocks here so someone can use it in their own drawing, send the DWG (or DXF); if you're just showing them what it looks like, a PDF or image is plenty.
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Questions
Frequently asked
Should I send my drawing as a DWG or a PDF?+
Send a DWG if the recipient needs to edit, coordinate or fabricate from the geometry. Send a PDF if they only need to view, print, approve or comment. The deciding question is simply whether they need the drawing to stay editable.
Can a PDF be edited like a DWG?+
No. A PDF is a flat, fixed page that captures how the drawing looks, with none of its editable objects, layers or true-scale geometry. You can view, print and comment on it, but you can't reliably measure or edit it the way you can a DWG.
How do I make a scaled PDF from AutoCAD?+
Plot from a paper-space layout using a PDF plotter, set the correct paper size, and choose a plot scale that matches the drawing's scale (e.g. 1:100) rather than "fit to paper". That keeps dimensions on the PDF true to scale.
Is it safer to send a PDF than a DWG?+
For issuing finished drawings, often yes — a PDF can't be casually altered, so the version you issue is the version they keep, and it doesn't expose your editable geometry, layers or blocks. Send a DWG only when the recipient genuinely needs to edit the work.
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