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Enlarging a square mask in premiere

Explorer ,
Oct 02, 2017

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How do I keep the corners of a rectangular mask at 90 degrees and expand it in premiere?  I am not talking about the "mask expansion" effect, which only goes so far and give my rectangle rounded edges.  I want to create a large rectangle from the rectangle mask, but when i click on a corner or two pressing "shift," this does not allow me to keep the shape a rectangle with 90 degree angles.

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Enlarging a square mask in premiere

Explorer ,
Oct 02, 2017

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How do I keep the corners of a rectangular mask at 90 degrees and expand it in premiere?  I am not talking about the "mask expansion" effect, which only goes so far and give my rectangle rounded edges.  I want to create a large rectangle from the rectangle mask, but when i click on a corner or two pressing "shift," this does not allow me to keep the shape a rectangle with 90 degree angles.

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Oct 02, 2017 1
Adobe Community Professional ,
Oct 02, 2017

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I believe it ctrl-shift-alt click/drag, then drag from one of the sides and not the corner

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Oct 02, 2017 0
Adobe Community Professional ,
Oct 02, 2017

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You need to do it on a side by side basis:

With the selection tool, click outside the mask and drag over the two corners you wish to move together, and release.

The two corner boxes you dragged over will fill blue (this is kind of hard to see).

Click on either of the two filled boxes first, then hold down the shift key (to constrain the movement to 90 degrees) and drag the side of the rectangle where you want it.

Repeat with the other sides of the rectangle.

MtD

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Oct 02, 2017 0
Explorer ,
Oct 03, 2017

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neither of the above replies was working for me. the best solution i've found so far is to hover with Shift pressed down over a corner or the mask until your cursor looks like diagonally oppositional arrows. then you can drag to expand the size of the mask, keeping it in rectangle shape.  But I would like to make it a square shape, keeping the angles at 90 degrees, and have no solution for that yet.

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Oct 03, 2017 4
Community Beginner ,
Sep 20, 2020

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3 years later and there is still no way to make a simple square mask and adjust its size in Adobe Premiere. Itäs really surprising.

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Sep 20, 2020 0