Quick answer
Use JPG for ordinary photographs and PNG for flat graphics, logos, or text that needs crisp edges. Those two formats have the broadest dependable support. WebP, GIF, HEIC, and TIFF support varies by platform, device, and publishing tool, so convert them before a multi-platform workflow unless every destination is verified.
Source check: August 28, 2026. Platform apps, APIs, account types, and third-party publishers can change on different schedules. The final operational check is the preview and public result in the exact path you use.
At a glance
| Surface or choice | Size or limit | Ratio or source | What it means |
|---|---|---|---|
| JPG/JPEG | Photographs | Small, broad support | No transparency; repeated saves can degrade |
| PNG | Logos, text, flat graphics | Crisp edges and transparency | Larger files |
| WebP | Web delivery | Efficient compression | Publishing support varies |
| GIF | Simple animation | Familiar format | Large files and uneven platform behavior |
| HEIC/HEIF | Phone originals | Efficient capture | Convert for dependable cross-platform use |
What this page owns
A platform's native app and a scheduling API can support different files. The safe operational format is the one accepted by the exact path that will publish the post.
That ownership boundary matters. Boomp uses one clear page for each search job instead of publishing near-duplicate pages that give different answers to the same question.
A dependable production method
- Use JPG for photos and PNG for graphics by default.
- Convert HEIC before handing files to a mixed-platform workflow.
- Flatten unsupported transparency carefully.
- Check color and sharpness after conversion.
- Upload a test when a format is unusual.
The last check matters most. A design file, successful export, scheduler acceptance, or API response does not prove that the customer-facing artifact is correct.
Size is only one acceptance test
A technically valid file can still fail the business. Check these questions with the final media and caption together:
- Is every name, date, price, claim, location, and link current?
- Does the crop preserve the subject and the useful words?
- Are captions, contrast, and text alternatives sufficient for the content?
- Does the business have permission to use the people, customer material, music, footage, and marks shown?
- Does the call to action match the destination and what happens next?
- Did a responsible person approve this exact version?
For the full release gate, use the social media content quality checklist.
Where Boomp fits
Boomp fits when the recurring problem is larger than one pixel count. The free first look starts with a public website and returns ten finished posts, with images, a carousel and a short video, before asking for an account or a card. They are the software's reading of the public site and do not prove that Boomp knows the owner's voice. Publishing and the recurring month belong to the paid plans. Finished media and posts belong to paid work, with the customer's approval settings controlling what represents the business.
See ten finished posts made from your website, free.
Related guides
- How to Compress Images for Social Media Without Ruining Them
- Social Media Image Sizes 2026: The Practical Guide
- Social Media Alt Text Guide: Write Useful Image Descriptions
- Social Media Content Quality Checklist: 30 Checks Before Publishing
