Mixing video clips and photos in one post
A few seconds of movement can bring a post to life. Here is how photos and short clips work together in PostCRSL, and how to choose between exporting images and exporting a video.
Adding clips alongside photos
In the editor, video clips are added to pages just like photos. You can move, scale, rotate and crop them, place text on top, and use layers to arrange them with other items. You can also start a new project from a mixed set of photos and videos and let the editor place them on pages for you.
Your files are processed locally in the browser on your device, so nothing is uploaded to a server while you edit.
Choosing clips that work
- Keep clips short. A few seconds of a wave, a toast or a laugh usually says enough.
- Pick clear movement. One simple action reads better on a small screen than lots of shaky motion.
- Mind the sound. Wind and crowd noise can be loud; choose clips whose sound adds something.
- Balance with stills. Photos give the eye a rest between moving pages.
Remember that a page with a clip lasts as long as its longest clip, so one long video can slow the whole post down. Trimming clips on your phone before adding them keeps the rhythm tight.
Export option 1: images
Image export creates one JPEG or PNG per page and downloads them all as a ZIP, in page order. This is the usual format for a swipeable photo carousel. Keep in mind that a still image cannot move, so pages built around a video clip will appear as a single frame. If movement matters to the story, consider the video export instead.
Export option 2: one MP4 video
Video export combines every page into a single MP4 file using H.264 video and AAC audio. Page timing works like this:
- Photo-only pages last 2, 3 or 4 seconds, which you choose before exporting.
- Pages with a video clip last as long as the longest clip on that page.
Video export suits Stories, Reels and other full-screen formats. For those, a 9:16 aspect ratio is a common choice; see choosing an aspect ratio and check the platform's current help page for its requirements.
Browser support for sound
Chrome, Edge and Safari can export video with sound. Firefox currently cannot export video with sound, and the editor tells you so clearly when it applies. Image export and silent video export both work in Firefox. If your clips have sound you want to keep, use one of the other browsers on the same device. Remember that projects live in the browser where you made them, so download a backup file first if you need to open the project in a different browser.
Quick answers
How long will my exported video be?
Add up the page lengths: 2, 3 or 4 seconds for each photo-only page, plus the length of the longest clip on each video page.
Why is there no sound in my video in Firefox?
Firefox currently cannot export video with sound. Use Chrome, Edge or Safari for video with audio; images and silent video work in Firefox.
Can I export both images and a video from the same post?
Yes. Export once as images and once as video, then use whichever fits each platform.
















