Inspiring

Answered

file size changes from 17.8 MB to 17.5 when saved as a JPEG

Forum|Forum|8 years ago
April 1, 2018
5 replies
1284 views

pixels stay the same, but file size changes a small bit. just enough to mess the print up and not be able to do a full bleed on it without cutting off something on poster. print company printed my original image just fine with full bleed.

but i noticed some errors i didnt see until printed version, and wanted to clone stamp. so:

uploaded image from pics with PS CC 2018,

clone stamped it some

saved it as jpeg, used 12 quality and 300 resolution, its on 8 bit. its a flat file. (also should i change resolution to maybe 1200 as print comapny said resolution went down some (from 1 save)?)

saved image has same pixel size as original but MB went from 17.8 to 17.5?

print co says file is different now and wont print same with full bleed?

what happened? what did or do i do?

This topic has been closed for replies.

Correct answer clintk43398157

just got off phone with adobe. they did a screen share thingy. apparently the PS preferences were changed/off/wrong (i didnt do it). they reset them and now clone stamped/edited photo saves at 17.8 like it was or shoulda been. i knew there was a prob. thank god it got fixed.

so answer to file size changing from 17.8 to 17.5 when saving edited photo was PS preferences.

dont know what or how they changed it, as he did it all pretty fast and i was just watching them do it. but it got fixed. hooray!

T

Test Screen Name

Legend

Actually, I believe there may be other issues, but as sometimes happens, the original poster has (1) found an issue (2) looked for a cause (3) found something irrelevant (4) insisted that this new something is the real problem and demanded a fix to the irrelevant something.

Deat Clint, if you would like assistance with an underlying issue, please describe it in detail. include the info from image SIze. issues of quality usually need pictures (DO NOT REPLY BY EMAIL WITH PICTURES) Take care to read each reply and suggestion. If there’s anything you don’t understand (no shame in that) say so. If you find you are repeating the question, try again. Some people here have 20 or more years of experience of daily use of Photoshop. So while you may get unhelpful or wrong advice, you’re also likely to get some pretty good stuff if you choose to work with us. It’s up to you.

clintk43398157AuthorCorrect answer

Inspiring

just got off phone with adobe. they did a screen share thingy. apparently the PS preferences were changed/off/wrong (i didnt do it). they reset them and now clone stamped/edited photo saves at 17.8 like it was or shoulda been. i knew there was a prob. thank god it got fixed.

so answer to file size changing from 17.8 to 17.5 when saving edited photo was PS preferences.

dont know what or how they changed it, as he did it all pretty fast and i was just watching them do it. but it got fixed. hooray!

T

Test Screen Name

Legend

The only issue is In your expectations. They are wrong. Time to lose them.

Trevor.Dennis

Community Expert

https://forums.adobe.com/people/Test+Screen+Name wrote
The only issue is In your expectations. They are wrong. Time to lose them.

Amen to that.

T

Test Screen Name

Legend

Don’t waste your time calling Adobe, accept it’s normal, and move in to other issues. Resolution, by the way, is up to you. You can check and change it in Image > Image size menu.

clintk43398157Author

Inspiring

this was for a huge project. worked on this poster for 6 months. many tubes/lables/inserts,etc were already bought/printed. they ordered special size/texture paper for me too. they printed the original but noticed a few flaws on it not noticable on monitor, but it was on the print. and I needed to correct those with the clone stamp. so i did or am trying and now its become an issue due to this .3 MB file size change. cant let it go. gotta figure it out.

T

Test Screen Name

Legend

Size will always change. JPEG is lossy (damaging) by design, each save will lose more and different info, and it may compress to smaller or larger. Also metadata may get bigger or smaller, it’s never the same.

Resolution does not change but quality is reduced every time you save a JPEG. Do not edit JPEG repeatedly (we often have no choice but to edit it once). So, every time you must edit a JPEG save a PNG and use it as the basis for all future edits. Export a JPEG as needed.

clintk43398157Author

Inspiring

will it change size if i save as pdf or tiff?

Trevor.Dennis

Community Expert

clintk43398157 wrote
will it change size if i save as pdf or tiff?

You need to be specific, if only so we can be sure you are understanding that there are different criteria for measure an image size.

A PDF Is going to have a larger file size in Mb than the same document saved as a JPG, but will have exactly the same pixel size.

A TIFF will be larger still, and similar to a PSD which is Photoshop's native file format.

Echoing what 'Test Screen Name' has said, your original document should be considered as a Master. If it has any sort of importance at all, then save it as a PSD file with all its layers, and at full resolution. NEVER THROW AWAY PIXELS FROM YOUR MASTER DOCUMENT. (I apologise for shouting). You can open and save this PSD file as often as you like, and never lose any quality.

If the image is to be used on the Internet, then you won't need a full resolution image, and can downsize accordingly, and save it to JPG or PNG, probably with an sRGB colour space.

If it is going to be printed, keep it full resolution, and save to whatever format your printer requires. PDF is often used, especially when there are text or other vector layers involved. It creates a large file size, but will produce a good quality print. Some printers will want to follow the linear size of the document which means that DPI or resolution, is important. Others will print at whatever size you dictate.

Speak to your printer. They know what works best for their machines.

Trevor.Dennis

Community Expert

The file size has no impact on printing. If the resolution was reduced, but the pixels remain the same, then the DPI and resolution has changed. That won't have happened without user input.

clintk43398157Author

Inspiring

something musta changed on it. print co did a print of old image and edited one with full bleed and edited one cuts off some. no size was changed by me and pixels say same size on both images in my pictures.

anyway I can save it with same MB file size?

also would dpi change when saving it? i have it set at 300.

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