The question is redundant in the sense that by beginning with a jpeg bitmap, quality has already been sacrificed as it represents a destructive form of compression. If the jpeg is a photo, you cannot repair the damage and enlarging it will only highlight the poor quality. Your only options are to seek an original large version (if it exists) or use an alternate image. If it's a logo or relatively simple graphic, redraw it in Illustrator as a vector - then you will ensure it can be enlarged whilst retaining the required quality for professional outcomes. Example: – Apr 13 at 15:17. To say it short: No. Images in jpg format are not vector based images.

In Word and PowerPoint for Mac 2011, you can change the compression behaviour for a placed bitmap image via the Format Picture ribbon. Double-click the image to bring that ribbon to the front, then click the Compress button and choose the option Keep Current Resolution. Or, choose File > Reduce Size to bring up the dialog box.

Vector based images can be resized without to lose quality. Bitmap images contains colored pixed. If you try to double the size one pixel has to grow to 4 pixel with the same color. Result: If you want the image 3 times bigger you will see the original pixels in your image. It depends on your image if it is changeable to vector format or not.

An usual photo (portrait of a human, mountains, landscape etc.) is not changeable to vector format. VectorMagic is the best programme I have used (professionally) for bitmap to vector and is a huge step above Illustrator's auto-trace. It has a fully auto mode or you can tweak parameters. One cool feature is it sweeps the initial result and 'smooths' out curves removing points and simplifying - this is normally where you have to go in and clean up a good deal - imagine a circle - you only need 4 points but generally you get a dozen+ and they distort the shape. Here is an example, crest bitmap to vector in short time: - didn't need super accurate copy but good curves.

– Sep 28 at 8:55. As stated you cannot increase the size of a.jpeg without loosing quality but there is a margin of tolerance that you can increase the size of a.jpeg before it is noticeable. Take my hero for instance (original file): If I import this image into Photoshop and go to Image > Image Size (Shortcut Ctrl+ Alt+ I for PC or option/alt+ cmd+ I for Mac) Change pixels to percent You can change the percentage to 110% and repeat this till you receive a notable difference in quality. NOTE IF the image is high quality you can usually do an increase no more than 10 times from experience but as stated, this depends on the quality of the image you are adjusting. Ok and oldie but goodie question; here I go: Some definitions/aclarations: 1) Quality is a process, is taking care on each step of it. Psx emulator mac 2018. In a case of resampling an image there is no 'quality' loss, (except if you make mermelade of your own photo, probably compressing it like hell) What you have is information loss when you downsample it.

You have a 'information guess' when you upsample it. 2) There is no CSI program that perform miracles in the terms you need (However, I have seeing some forensic image processing program that fairly shows a licence plate from a very low resolution image, or from a very narrow angle. The result was ugly, but you could clearly see the licence plate.) 3) So, the programs use diferent 'guess' methods to try to asign information to the new pixels. Some real tests Here is a controlled exercise of resampling. Reset your browsers zoom so you see them in real size.

A) In the center are 3 images. The reference image is the one marked 100% b) Next to it there are some smaller marked as 300% and 200%. They are 1/3 and 1/2 respectively, when they are upscaled they will have a resampled ratio as marked. The programs used (in order of appearance): 1) Just scaled (this is the so popular 'pixelation', the technical name is 'nearest neighbour') 2) Irfan view Lanczos Filter 3) PhotoZoom 4) Reshade Photo: Scott F. Snyder Model: Amy Lee Fathbruckner • The normal Photoshop bicubic filter looks simmilar to Lanczos Filter. • This is an oldie test, there is a chance the programs now make a better result, but do not expect a quantum leap. • They have no aditional process.