pacifichaser.blogg.se - Adobe photoshop file size

The best conclusion that can be drawn is that PSD is certainly more efficient at smaller file sizes while quickly becoming a worse option at larger ones. With a larger, multi-layer file that approached the PSD limit you can see a much different story: PSDs dominance in efficiency, however, appears to diminish as the file size increases. In this situation PSD offers much better efficiency when saving the same file. For example, I opened one of my photo stitch files that enjoy a healthy 10,000 px by 6668 px resolution and saved both. The distinction isn't quite as clear-cut though as PSD seems to do a better job compressing small images. The first, and most obvious conclusion we can draw from this comparison is that PSDs appears to be objectively worse than a TIFF file as both are supported in Lightroom but the PSD offers a far smaller ceiling. Each has its own merits so I have constructed a handy little table below to compare them. The three formats Photoshop offers that preserve all your working data are Photoshop Document (PSD), Large Document Format (PSB), and Tagged Image File Format (TIFF). The first step to keeping your files at a manageable size is in choosing what format you should actually be saving your files in. All is not lost, however, there are some pretty easy strategies for eliminating this problem without having to flatten your working file into destructive nothingness. This is a problem that photographers are continually faced with that can become insanely annoying. After spending many, long painstaking hours diligently working in Photoshop you are greeted with the horror that your file cannot be saved because it's too large. You just finished working on what may be your coolest photo ever. We now are faced with file size limits that are becoming more and more restrictive as cameras collect bigger and bigger chunks of data with every photo. Times have changed, and unfortunately the formats have not. Each was designed many years ago for photos made by cameras with single-digit resolution. All that by (IMHO) negligible visual difference.There was a time when file limits were considered near impossible to reach ceilings.

PNG-8, Dithering: diffuse, Colors: 256, Size: 4 528 bytesĬompare them visually and then take a good look at their respective data sizes.

JPEG, Progressive, Quality: 60, Blur: 0, Size: 11 104 bytes.

JPEG, Optimized, Quality: 60, Blur: 0, Size: 16 898 bytes.

JPEG, Progressive, Quality: 40, Blur: 0.18, Size: 9 672 bytes.

Left to right, top to bottom, their parameters are: When some "smoothing" is required try different dithering algorithms. In the case of PNG, you should try to reduce ammount of used colors as much as possible (use PNG-8 for that). "Progressive" option or to set "Blur" to non zero value (subtle blur can mask severe compression artifacts). When we speak about JPEG compression, don't hesitate to try to use e.g. There are some images you can safely save with JPEG compression "slider" set to 30 or 40 without making artifacts apparent. Specific compression scheme, parameters, color reduction etc. Otherwise, if you've got some lineart, text, image with a couple of colors you should try PNG instead. If you're trying to save image with a lots of colors and smooth transitions between them, your choice would rather be JPEG. I could use a service like Typekit but again many fonts I use are not available with Typekit.Ĭhoice of the best compression method depends on your image content. Some I could use for the web using CSS's but you can run into large file sizes and in some cases you cannot upload the font to the web legally. This severally limits what I can do with placing of text using HTML and CSS over the image.Īlso I use a variety of fonts. Many of the images I use and create get sent via email. What are techniques without reducing quality to reduce the file size? While this isn't a huge issue these images are used for the web and smaller is better. This produces file sizes of several hundred kilobytes depending on size of image. I really do not want to lower the quality settings because I use text and sometimes I see artifacts if the setting is too low. I use Save for Web (and Devices) and save as a JPEG. I would like to save files in Photoshop but keep them as small as possible.