Pinterest Image and Idea Pin Specs for 2026

Pinterest's format rules shifted twice in the last twelve months. The April 2026 update quietly enabled AVIF decoding on the web client and bumped the maximum Idea Pin length to 90 seconds. Several popular spec sheets online still list 60 seconds and only support JPEG/PNG — they are out of date. Here is the current ground truth.

Standard pins

The default pin format remains 2:3 portrait. Anything wider than 1:1 gets cropped in the feed.

Pin type	Aspect ratio	Recommended px	Max file size
Standard pin	2:3	1000 x 1500	20 MB
Square pin	1:1	1000 x 1000	20 MB
Long pin	1:2.1	1000 x 2100	20 MB

Long pins (the old "infographic" format) still work but Pinterest truncates them in the feed at 2:3. The extra length only renders on the pin detail page, so put your hook in the top 2:3 slice.

File formats

As of the April 2026 Pinterest Web update:

• JPEG: universal, still the default
• PNG: fine, but bloats file size
• WebP: supported for upload and display since 2024
• AVIF: newly supported on upload as of April 2026, displayed as AVIF on Chrome and Safari 18+, falls back to JPEG on older clients
• GIF: supported but converted to MP4 server-side
• HEIC: not supported, convert first

If you are moving a library of iPhone photos over, run them through HEIC to JPG conversion before upload. Pinterest will reject HEIC with a generic "unsupported format" error that does not tell you what went wrong.

Video pins

Video pins still outperform static pins for first-week impressions by roughly 2x based on Pinterest's own Q4 2025 creator report. Specs:

• Aspect ratio: 9:16, 1:1, or 2:3
• Resolution: 540 x 960 minimum, 1080 x 1920 recommended
• Length: 4 seconds minimum, 15 minutes maximum
• File size: 2 GB max
• Codec: H.264 or H.265 in an MP4 container
• Audio: AAC, 128 kbps minimum

H.265 (HEVC) uploads are accepted but get re-encoded to H.264 for older browsers. If you are tight on upload bandwidth, ship H.265 — it is roughly 40% smaller than equivalent-quality H.264.

Idea Pins (now "Collages")

Pinterest merged Idea Pins into the broader Collages product in late 2025. The specs are effectively the same as the old Idea Pin:

• Aspect ratio: 9:16 (strict)
• Resolution: 1080 x 1920
• Pages per collage: up to 20
• Video page length: up to 90 seconds (up from 60)
• Total collage length: up to 15 minutes
• Format: MP4 or MOV for video pages, JPEG/PNG/WebP/AVIF for image pages

The 9:16 requirement is not flexible. Anything else gets letterboxed with ugly black bars. Design in 1080 x 1920 from the start.

Safe zones

The bottom 250 pixels of any vertical pin are partially covered by the pin title, save button, and account attribution. Keep text and important visual elements out of the bottom 15% of the frame. The top 60 pixels also get an overlay on the detail page.

Color profile

Pinterest strips color profiles on upload and assumes sRGB. If you export from Lightroom in Adobe RGB or ProPhoto RGB, colors will shift visibly toward desaturation. Always convert to sRGB before upload.

Compression targets

Pinterest's internal compressor is aggressive on large JPEGs. Pre-compress to keep quality control in your hands:

Standard pin (1000x1500 JPEG):  150-250 KB
Long pin (1000x2100 JPEG):      250-400 KB
Video pin (1080x1920 H.264):    8-12 Mbps bitrate

If you hit the server-side compressor with a 4 MB JPEG you will get a 300 KB JPEG back with artifacts on gradients. Export closer to the target size and the compressor leaves you alone.

Batching a seasonal campaign

For holiday campaigns where you are shipping 30 to 50 pins at once, the bottleneck is usually resizing source artwork from 4K originals to the 1000 x 1500 upload size. The batch converter handles the resize and format conversion in one pass, and keeps everything local since Pinterest marketing assets are often under embargo.

The takeaway: 2:3 at 1000 x 1500 for static, 9:16 at 1080 x 1920 for video and collages, sRGB only, and you can finally ship AVIF directly without the WebP fallback dance.