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How do I upscale a small image or AI artwork to 300 DPI for a print-on-demand poster or Etsy printable, and what does it cost per image?

For: Print-on-demand and Etsy printable sellers, illustrators and AI-art creators who need a small image (for example a 1024×1024 AI render) large and sharp enough to print as a poster, canvas or wall art · Published 2026-11-10 · Updated 2026-11-10

Short answer

At 300 DPI an 8×10 in print needs 2400×3000 px (7.2 MP) and a 24×36 in poster 7200×10800 px (about 78 MP). Upscayl's desktop app is free and open source but needs a Vulkan-compatible GPU. Let's Enhance Starter costs $9/month billed yearly for 100 images (about $0.09 each) with output up to 256 MP; its free credits stop at 8 MP with a watermark. Topaz Gigapixel Personal is $149/year with unlimited upscaling on your computer.

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Comparison

ToolWhy it fits (from official info)PricingOfficial pricingChecked
Upscayl logoUpscaylFree and open source (AGPLv3) desktop app for Windows 10+, macOS 12+ and Linux, built on Real-ESRGAN; batch processing and up to 16x upscaling, all on your own computer, so files never leave your machine. Its FAQ says it needs a Vulkan-compatible GPU and many integrated GPUs don't work. If your computer can't run it, Upscayl Cloud has a 10-credit free trial and a $24.99 Pro plan with 300 credits a month.FreemiumThe desktop app is free and open source (AGPLv3); just download it. Upscayl Cloud pricing page (2026-11-10, USD): Free Trial $0 with 10 credits (log in and fill out a trial application); Pro Plan $24.99 for 300 credits a month (the page's default view), unused credits roll over, upscales up to 256 megapixels; one-time credit purchases and custom business plans are also offered.
Let's Enhance logoLet's EnhanceWeb upscaler that explicitly targets print: up to 16x, '300 DPI at any size', posters, canvas and print-on-demand. Starter $9/month billed yearly ($12 monthly) = 100 images a month (1 image = 1 credit) with output up to 256 MP, enough for a 24×36 in print at 300 DPI. 10 free credits on sign-up, but free output is capped at 8 MP and watermarked (re-download without the watermark after paying).FreemiumFrom the official pricing page (2026-11-10, USD): 10 free credits on sign-up (no card; output up to 8 megapixels with a watermark, which is removed once you pay and re-download); Starter $9/month billed yearly ($12 monthly), 100 credits a month, output up to 256 megapixels; Pro $24/month yearly ($32 monthly), 300 credits, up to 350 megapixels; Max $34/month yearly ($45 monthly), 500 credits, up to 512 megapixels. 1 image = 1 credit; unused credits roll over on personal plans (up to 6x the monthly amount); pay-as-you-go bundles are also sold.
Topaz Gigapixel logoTopaz GigapixelDesktop upscaler built for large prints (upscales almost any image 6x) with models for art and CG, text and shapes, and very low-resolution images. Personal $149 billed yearly ($12/month) includes unlimited local and cloud image rendering, so cost per image falls the more you upscale; commercial use is allowed for sellers under $1M annual revenue. No free plan, but a full refund within 2 days of purchase.PaidFrom the Gigapixel page (2026-11-10, USD): Personal $149 billed yearly ($12/month), $19/month on an annual plan billed monthly, or $29/month monthly; Pro $499 billed yearly ($42/month) or $54/month on an annual plan billed monthly, adding pro models, seat management and full commercial use. Personal allows commercial use for people and organisations under $1M annual revenue. All include unlimited local rendering and cloud image rendering; one desktop seat runs on one computer at a time. Full refund within 2 days of purchase.
Magnific logoMagnificThe upscaler many AI artists know (formerly magnific.ai, now Freepik's rebranded platform). Premium €10.50/month billed yearly (€15 monthly rate shown) includes the Magnific image upscaler and a commercial AI licence, with 240K credits a year that don't reset monthly. Worth it if you also want image and video generation and a stock library; the pricing page doesn't list a per-upscale credit cost.See official siteFrom the official pricing page (2026-11-10, EUR, excl. VAT): Premium €10.50/month billed yearly (€15 shown as the monthly rate), 240K credits a year, includes the Magnific image and video upscalers and a commercial AI licence; Plus €25.50/month yearly (€34), 600K credits a year, includes Magnific and Topaz upscalers and unlimited generations on some models; Pro €62.25/month yearly (€83), from 1.5M credits a year. Credits last 1 year with no monthly reset; top-ups any time.
PicWish logoPicWishLighter option for small listing images rather than posters: the Free plan includes 6 Image Enlarger images, and paid Pro includes 450 credits a month for credit-based tools. Prices are shown per region on its site.FreemiumFrom the official pricing page (2026-11-10): Free $0 (core features limited, a few free AI trials, no credits, no batch processing; Image Enlarger 6 images); Pro includes 450 credits a month and 100 free HD core-feature downloads a day; Max includes 2,000 credits a month and 15,000 core-feature downloads a month; pay-as-you-go credit packs never expire. Unused subscription credits don't roll over. Pro and Max prices are shown per region on the site.

How to do it with AI

  1. Find the pixel size your print needs: inches × 300. 8×10 in = 2400×3000 px; 12×18 in = 3600×5400 px; 18×24 in = 5400×7200 px; 24×36 in = 7200×10800 px. Always confirm with your print provider's own file requirements.
  2. Work out the scale factor from your original. A 1024×1024 image upscaled 4x is 4096×4096 px, which prints about 13.6×13.6 in at 300 DPI; a 2:3 poster at 24×36 in needs the short side at 7200 px.
  3. Try free first: Upscayl desktop (needs a Vulkan-compatible GPU) or Let's Enhance's 10 free credits (output up to 8 MP, watermarked) to check the look on your style of art.
  4. Pick the plan by volume: Let's Enhance Starter is about $0.09 per image on yearly billing (100 a month); Topaz Gigapixel Personal is a flat $149/year with unlimited local renders; Upscayl desktop is $0.
  5. Zoom to 100% on faces, hands, fine lines and any text after upscaling. Use art/CG or text-preserving modes (Topaz Art & CG or Text & Shapes, Let's Enhance Gentle) when lines or lettering get smeared.
  6. Set the DPI metadata to 300 in your image editor if the print shop asks for it — the pixel count is what actually decides print sharpness.
  7. Check the licence before selling: Topaz Personal allows commercial use only under $1M annual revenue, Magnific paid plans include a commercial AI licence, and Upscayl's desktop app is open source.

A checklist you can paste into a note for each design before you upscale (our suggested wording, not a test output)

Design: [name]. Original size: [width × height px]. Target print: [e.g. 18×24 in] at 300 DPI = [5400×7200 px]. Scale needed: [target ÷ original, round up to the tool's next step: 2x / 4x / 6x / 8x / 16x]. Tool and mode: [e.g. Let's Enhance Prime, or Gentle for text]. Checked at 100%: faces / hands / line art / text — OK or redo. Final file: [px], sRGB, DPI tag 300, saved as PNG or high-quality JPG per print provider spec.

Hands-on log

  • 2026-11-10 · Tried — failed

    We downloaded Upscayl's free command-line upscaler (upscayl-bin, release 20251207, Linux) and ran a 4x upscale on a 64×64 px test image on a cloud server with no graphics card. It stopped with 'vkCreateInstance failed' and 'Error: Invalid GPU Device' and produced no output. This matches Upscayl's own FAQ: it needs a Vulkan-compatible GPU. We have no quality results to report. Let's Enhance, Topaz Gigapixel and Magnific need an account or a purchase, so they were not tested.

China-made vs Western: Meitu Designkit and Zuotang next to Let's Enhance, Topaz Gigapixel and Upscayl

Meitu Designkit (from the makers of Meitu) and Zuotang (the mainland China edition of PicWish) are listed in our mainland China section. Both have ICP filings and bundle image enlarging or sharpening into an e-commerce design tool, rather than selling a print-focused upscaler priced per image.

NeedMeitu Designkit / ZuotangLet's Enhance / Topaz Gigapixel / Upscayl
Free way to startMeitu Designkit Free ¥0 (some free AI tools); Zuotang offers a free trialUpscayl desktop free; Let's Enhance 10 free credits (8 MP cap, watermark); Topaz: no free plan, 2-day refund
How you payMemberships with monthly Meitu beans (330 Standard, 1,000 Premium) or Zuotang memberships and credit packs; prices shown in the app/siteLet's Enhance $9–$34/month yearly by image count; Topaz $149/year flat; Upscayl Cloud $24.99 for 300 credits
Print-size outputLossless resize and sharpening tools; no megapixel limits listed on the pages we checkedLet's Enhance up to 256–512 MP by plan; Topaz up to 6x; Upscayl up to 16x
Commercial licenceMeitu: personal vs business commercial licence, sold separatelyTopaz Personal: commercial use under $1M revenue; Let's Enhance: no watermark on paid plans
Best forSellers on Taobao, JD, Douyin or Pinduoduo who also need product sets and detail pagesPOD and Etsy sellers printing posters and wall art for customers outside mainland China

Design tools usable in mainland China →

FAQ

How many pixels do I need for a 300 DPI poster?

Multiply each side in inches by 300: 8×10 in = 2400×3000 px (7.2 MP), 18×24 in = 5400×7200 px (about 39 MP), 24×36 in = 7200×10800 px (about 78 MP). Let's Enhance's free output cap of 8 MP covers 8×10 in; its paid plans go to 256 MP and above.

Sources: letsenhance.io/pricing

What is the cheapest way to upscale images for print-on-demand?

Upscayl's desktop app is free and open source, but it needs a Vulkan-compatible GPU. For a web tool, Let's Enhance Starter is $9/month billed yearly for 100 images. For heavy volume, Topaz Gigapixel Personal is $149/year with unlimited local and cloud image rendering.

Sources: github.com/upscayl/upscayl letsenhance.io/pricing topazlabs.com/gigapixel

Can I use Let's Enhance for free?

You get 10 free credits on sign-up with no card, but free output is limited to 8 megapixels and carries a watermark. After buying a plan or bundle you can re-download those images without the watermark.

Sources: letsenhance.io/pricing

Can I sell prints made with Topaz Gigapixel Personal?

Topaz says the Personal plan covers personal and commercial use for organisations under $1M USD annual revenue; above that you need Pro ($499/year billed yearly), which has full commercial use.

Sources: topazlabs.com/gigapixel

Does Upscayl work without a graphics card?

Upscayl's FAQ says it needs a Vulkan-compatible GPU and that many integrated GPUs don't work. In our test on a server with no GPU, its command-line tool stopped with 'Invalid GPU Device'. Without a suitable GPU, use Upscayl Cloud or a web tool.

Sources: github.com/upscayl/upscayl upscayl.org/pricing

Is Magnific the same as Freepik?

Yes. Magnific's site says Freepik is now Magnific: magnific.ai was the original upscaling service and magnific.com is the full platform with the same upscaler plus other AI models and a stock library. Premium starts at €10.50/month billed yearly.

Sources: magnific.ai magnific.com/pricing

Is there a mainland China alternative?

Meitu Designkit (ICP filed) has a free edition and memberships with monthly Meitu beans, including a lossless resize and sharpening tool; Zuotang, the mainland edition of PicWish, sharpens blurry product photos. See our mainland China section.

Sources: designkit.cn/pricing designkit.cn/upscale picwish.cn

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Sources

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