@Elias-Junior Hi, you haven't had any answers apart from the one from @Reyfox above because this is a fairly easy answer but also could be a long one,

I believe it is about aspect ratio, 16:9 (landscape) vs 9:16 (portrait)

this is a 9:16 clip of mine,

in VLC player it looks normal

& when i rotate it, it fills the screen 👍

In Vegas it looks correct but the project aspect ratio is 16:9, you can see bottom left of the preview it says 3840 x 2160 ( 16:9 = landscape), for it to be correct for the media it should say 2160 x 3840 ( 9:16 = portrait)

when i render that file in the aspect ratio as in the pic (landscape)

It looks correct in VLC player

but if i rotate it, it's wrong, not stretched as you say,

Is this what you are experiencing, if so we really do need the info suggest by @Reyfox in that post, MediaInfo, project settings, render settings etc.. 👍

@Former user Hello,you described correctly the issue.What I must to do to solve it ?

Vertical Size normal and Horizontal too

Size Video:


Now,rendering the video:




After rendering:

@Elias-Junior 👍 yep, find the size of your media & change the project settings to match, then when you go to render make those match the project 👍

One tip is -

if you look at the background on the preview-

this 16:9 project with a 9:16 image on it is black behind the image, see the numbers bottom left of the window

this one when dragged it on i click the 'yes make project match media', so the project is now 9:16, Grey behind the image 👍

I posted a new message up with images.Read it,please

@Elias-Junior You say you don't need to post details but it would be easier if you looked in that link @Reyfox shared there's a tool called MediaInfo, download it, it's a quick download, no spam or adverts & it's free https://mediaarea.net/en/MediaInfo
After downloading, right click on the media in your Windows folder, open MediaInfo, choose Text from the View option, select all, copy & paste in a comment here,

This is my vid showing it on YT

this tool will show all details of your media that are necessary & the more you use this app the more you'll learn about different medias & aspects.👍

@Elias-Junior click on this window, choose custom & change to 480 x 360

@Elias-Junior the render settings you have are 1280 x 720 (16:9), but your image is 480 x 360 (4:3)

so this what you're seeing n the player, it's hard to see because of the black background in the player

red line showing the video 1280 x 720

For this video that I posted here,It worked and solved the issue but I tried doing the same with other video and image got distorted.

@Elias-Junior It will all depend on the media size & matching your project settings with the render settings,

on the pic i showed there's Allow source to adjust frame size which sometimes helps with the difference between 18:9 & 4:3

& in Pan/crop there's right click - Match Output aspect & Match source aspect

you'll have to play with all these settings & see, ..

Hey, I changed options settings to render and I chose " Windows Media Video V11",after that, I chose custom size and then I chose " Keep Original Size" and It worked.The image didn't distorted.I also did this step that you wrote it says "Allow source to adjust frame size"
The issue was solved and I thank you so much !

@Elias-Junior 👍 good, i always use Magix AVC but whatever works for you,

one final tip as i need to go to work, remember the black on the preview behind the image -

when you render it shows what you're rendering

16:9, notice the black

but in 9:16 there's no black, only the portrait image is rendered

I would if i was you make a selection on the timeline, make only 1 change to the render/project settings at a time, then when you render choose - Render Loop region only, you can then make lots of quick renders & see what works & will help get your head around what's happening, 👍

@Elias-Junior PS. if your image doesn't look right in the media player, it could be the player settings,

here i exported a clip 4:3 as yours is

In VLC player it looks fine

Rotated using the wheel it keeps it's shape n size

but if i use the Transform & click the setting rotate 90º the image is narrower 🤷‍♂️,

If i wanted the image rotated I would do it first in Vegas & render as rotated, depends i guess on why you're rotating it in the player..