Check the destination
Select your channels and placements. Postly checks image formats, file sizes and dimensions against their publishing requirements.
Image editor tools for social publishing
Give every image a better fit.
Prepare images for the places you publish. Check the format, resolve supported issues, and review each destination’s preview before your post goes live.
Editor · Bulk CSV · Google Sheets · API · MCP
From original to ready for review
A considered finish. A clearer workflow.
Apply a supported fix
Use Fix images in the channel preview to resize, pad, compress or convert a supported image. The result is checked again.
Make the final call
Review framing, sharpness and transparency in the destination preview. Keep a larger original handy when a small source needs replacing.
Know what changes
Useful fixes, with room for your judgment.
Format & transparency
Supported decodable images can be converted to JPEG. Conversion can remove transparency, so check the background before publishing.
Size & framing
Supported fixes adjust dimensions, add padding or reduce file size. Review the composition and compression quality in the preview.
When to replace a file
Tiny originals, unreadable files and images that still exceed requirements need a better source or a new export. Enlarging cannot restore missing detail.
Bulk & connected tools
CSV, Google Sheets, API and MCP submissions receive destination media checks too. Replace rejected media URLs with corrected files, then retry the affected rows.
A little more detail
Your questions, answered
How does Fix images work?
Use Fix images in the channel preview for supported format, size or aspect-ratio issues, then review the result. Repairs are checked again. Tiny originals, unreadable files and images that still exceed requirements need replacing or manual export. Enlarging cannot restore missing detail. Videos are not automatically compressed or re-encoded.
Will every image be repairable?
No. Use a larger original for undersized images, and export an unreadable file to JPEG or PNG in your image editor. Review any remaining guidance after applying a fix.
Does this edit videos too?
Video checks provide guidance. Postly does not automatically trim, crop, compress or re-encode your video. Use the video export guide below.
Should I retry the whole post?
Review each destination separately. Retry only the failed destination after correcting the issue. If a result is unconfirmed, check the live destination before retrying.