I have CorelDraw 11. and need help understanding how something works with the File size of Corel Documents?
If I import a photo into CorelDraw and then I go to Bitmaps and then RES Tab. Then in here I make it 2 inch Heigh and 300 DPI and save this as a CorelDraw DOC. the files size is 752 kB.
Now if I re open this same CorelDraw Document and click on the photo and the drag the corner handel in to shrink the photo and save this CorelDraw Document again.
If I check the file size again of the Document it is still 752 kB why is it the same size?
I know it is the same photo in the Document but I did drag the handels and made it smaller so I thought CorelDraw would then make the Document smaller.
If
Not necessarily since the bitmap has not bee re-converted to a bitmap and given a new resolution after converting. You see, since you left the sample resolution alone it probably increased but the proportion was decreased keeping the balance the same hence the same file size. Try choosing 'Convert to Bitmap' setting and pick a resolution like 100dpi when the image is smaller then see a different document file size.
Thank you for getting back to me I know if I change the RES. or photo size properties the CorelDraw Document will be smaller.
But I just never understode why when you just Drag the corner handels in and make the photo smaller why this never makes the CorelDraw Document smaller?
I did hear that before that if an image is say 2 inch Heigh at 300 DPI and you drag the corner handel in the Physical size will get smaller. But the Res. will get Hiegher and I do not know why or understand it?
I know this is what is going on but how does this make the RES. go up?
biferi said: Thanks Brain for all you help you did make things a little clearer for me but I still am a little confused.
Thanks Brain for all you help you did make things a little clearer for me but I still am a little confused.
Maybe this diagram will explain things. The cyan square is 600px by 600px and measures 1" x 1". The yellow square the same square dragged on one corner to become 2" x 2", still maintaining its 600px x 600px.
In addition to Brian's excellent explanation, I'd like to add a couple of things:
Scaling a bitmap in a vector based program, like CorelDraw, will keep the number of pixels but change the size of each pixel.This because a vector drawing doesn't have any fixed grid that each pixel has to fit into.
In a bitmap editor, like Corel PhotoPaint or Adobe Photoshop, the pixel grid size is fixed, and therefore the number of pixels has to be reduced (or increased) instead when you scale.
Ronny Axelsson said:Scaling a bitmap in a vector based program, like CorelDraw, will keep the number of pixels...
Hi Ronny, I like your image, but I wonder my version helps: there are no white spaces between pixels (less potential confusion) and also shows how downsampling permanently removes color info.
I did want to know what Brain used CorelDraw for?
biferi said: I did want to know what Brain used CorelDraw for?
I know I have my intelligent moments, but you don't have to call me brain I mainly use Photo-Paint. I use it for image manipulation, enhancing photos, skin-smoothing, extra. I use CorelDraw to a far lesser extent for basic layouts, certificates, fliers, personal layouts & posters, any type of document that I want to look more attractive. How about yourself?
Best regards,Brian.