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Publishing · head to head

Affinity Publisher vs Stable Diffusion

Affinity Publisher logo

Affinity Publisher

Publishing

Desktop page layout application, free since the Affinity range was relaunched by Canva

From
Free
Rated
-
Full reviewWebsite
Stable Diffusion logo

Stable Diffusion

AI

Open-source AI image generation

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Affinity Publisher it cannot open native InDesign documents, only IDML exports, so inherited client archives either come across imperfectly or have to be rebuilt from scratch.; Stable Diffusion generated images have lower resolution and quality at non-standard dimensions
  • They diverge on capability: Affinity Publisher covers Master pages and text flow, Stable Diffusion covers Text-to-image.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Affinity Publisher and Stable Diffusion actually diverge.

Attributes where Affinity Publisher and Stable Diffusion differ
AttributeAffinity PublisherStable Diffusion
Pricing modelFree, no licence feeUnknown
PlatformsmacOS, Windows, iPadOSWeb, Local (GPU-based), Cloud APIs
CategoryPublishingAI
FoundedUnknown2019

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Affinity Publisher

  • Master pages and text flow
  • Prepress output
  • Unified application
  • IDML import
  • Data merge
  • Cross platform files

Only in Stable Diffusion

  • Text-to-image
  • Image-to-image
  • Inpainting
  • LoRA support
  • ComfyUI
  • Automatic1111
  • Multiple UIs
  • Local support

What people use each for

The jobs each tool is most often brought in to do.

Affinity Publisher

  • Freelance designers and small studios that cannot justify a monthly page layout subscriptionnot Stable Diffusion
  • In-house marketing teams producing brochures, reports and price lists for commercial printnot Stable Diffusion
  • Print buyers who need to check and correct supplied artwork without a design suite licencenot Stable Diffusion
  • Schools, charities and community publishers where a zero licence cost decides the toolnot Stable Diffusion

Stable Diffusion

  • ai tools managementnot Affinity Publisher
  • Workflow automationnot Affinity Publisher
  • Reportingnot Affinity Publisher

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Affinity Publisher

  • It cannot open native InDesign documents, only IDML exports, so inherited client archives either come across imperfectly or have to be rebuilt from scratch.
  • There is no scripting or plugin interface, so studios that automate catalogue or variable data production still need InDesign alongside it.
  • Signing in through a Canva account is now part of using the free application, which is a problem for regulated or offline environments that forbid cloud accounts.
  • The roadmap belongs to Canva, and the 2025 relaunch already reset the licence model that earlier perpetual buyers paid for, so long-term direction is outside your control.
  • Commercial printers and freelance collaborators still expect InDesign packages, so handoff usually means delivering flattened PDFs rather than editable files.

Stable Diffusion

  • Generated images have lower resolution and quality at non-standard dimensions
  • Struggles with complex multi-object prompts and text generation
  • Poor rendering of human hands, limbs, and faces due to training data limitations
  • Trained primarily on English-language descriptions, reinforcing Western cultural bias
  • Requires significant GPU computational resources for local deployment

Pricing, plan by plan

Affinity Publisher

Free
  • AffinityFree
    • Free for everyone since the 2025 relaunch
    • Layout, vector and photo tools in one application
    • Requires a Canva account to sign in

Stable Diffusion

Free

No published plan breakdown. See the Stable Diffusion review.

Which should you pick?

Choose Affinity Publisher if

  • You need master pages and text flow.
  • You want to start without paying.
  • You work on macOS, Windows, iPadOS.
  • You also want prepress output.
Affinity Publisher review

Choose Stable Diffusion if

  • You need text-to-image.
  • You want to start without paying.
  • You work on Web, Local (GPU-based), Cloud APIs.
  • You also want image-to-image.
Stable Diffusion review

Questions people ask

Is Affinity Publisher or Stable Diffusion better?
Neither clearly leads. Affinity Publisher starts at Free and Stable Diffusion at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Affinity Publisher or Stable Diffusion?
Affinity Publisher starts at Free and Stable Diffusion at Free.
Does Affinity Publisher or Stable Diffusion run on more platforms?
Affinity Publisher runs on macOS, Windows, iPadOS. Stable Diffusion runs on Web, Local (GPU-based), Cloud APIs.
Can I use Affinity Publisher for free?
Both have a free tier, so you can try either at no cost before committing.
What is Affinity Publisher best used for?
Affinity Publisher is most often used for freelance designers and small studios that cannot justify a monthly page layout subscription, in-house marketing teams producing brochures, reports and price lists for commercial print, print buyers who need to check and correct supplied artwork without a design suite licence, schools, charities and community publishers where a zero licence cost decides the tool. Of those, freelance designers and small studios that cannot justify a monthly page layout subscription and in-house marketing teams producing brochures, reports and price lists for commercial print are not what Stable Diffusion is typically brought in for.
What can Affinity Publisher do that Stable Diffusion cannot?
Affinity Publisher covers Master pages and text flow, Prepress output, Unified application, IDML import. Stable Diffusion covers Text-to-image, Image-to-image, Inpainting, LoRA support.

Answered from the vendors’ own pages

Affinity Publisher: Is Affinity Publisher really free now?

Yes. Since the 2025 relaunch the unified Affinity application is free. Artificial intelligence features need a paid Canva plan.

Stable Diffusion: Is Stable Diffusion truly free and open-source?

Yes. Stable Diffusion is released under the CreativeML Open RAIL-M license, allowing free use for both commercial and non-commercial purposes, and the code is open-source on GitHub.

Source
Affinity Publisher: Can it open InDesign files?

Only IDML interchange files, and complex layouts lose fidelity. Native INDD files cannot be opened at all.

Stable Diffusion: Can I use Stable Diffusion commercially for free?

Yes, if your organization has less than $1M annual revenue. Organizations exceeding $1M annually must obtain an Enterprise License from Stability AI.

Source
Affinity Publisher: What happened to the perpetual licences people bought?

Canva made the relaunched application free to everyone, which superseded the paid version 2 licence model.

Stable Diffusion: What are Stable Diffusion's image resolution limitations?

The base model was trained on 512x512 pixel images, and image quality degrades noticeably when deviating from this resolution. Newer models like SDXL support higher resolutions.

Source
Stable Diffusion: Can I run Stable Diffusion locally on my computer?

Yes. Stable Diffusion is open-source and can run locally on compatible hardware, though it requires a GPU for reasonable performance.

Source
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