PagodaSteve

I need to resize/reduce resolution of several hundred jpeg files for posting on a space-limited website. Is there an easy way to resize these files as a batch instead to individually working on each file? Thanks in advance for any advice.

Cheers,

PagodaSteve

CHG_CANON Loc: the Windy City

What tools do you have already?

Pixie Jackie Loc: New Hampshire seacoast

I'm interested in hearing the answer also! (Using mostly Adobe Photoshop/Elements) -- PixieJackie

rgrenaderphoto Loc: Hollywood, CA

With Adobe Lightroom's Export module, it is incredibly easy to resize/reduce thousands of images in a batch process.

Gene51 Loc: Yonkers, NY, now in LSD (LowerSlowerDelaware)

Without more information - computer platform, software owned, etc. it is impossible to answer your question.

Otherwise, use Faststone Image Viewer to do the batch resizing. It's free, runs on PC/Windows, and does it fairly quickly with minimal negative impact to image quality. Are you sure you need to resize the images, or just make them of slightly lower quality to help them load faster? That would determine what you need to do.

Pixie Jackie Loc: New Hampshire seacoast

Fastone Image Viewer? I really hate to add ANOTHER program unless I absolutely have to! I have Lightroom. Will look into Lightroom's Export module the next time that I need to send a batch via e-mail. Speaking of which, what do you do when someone sends you their 72 res cell phone picture and asks you to make a print? I don't do anything for them larger than 4x6, maybe 5x7. I don't think there's any way to improve the quality of their lousy cell phone pic to make a larger print. Or is there? -- Pixie Jackie

Retired CPO Loc: Travel full time in an RV

OK, you just blew my mind. Which doesn't take a lot when talking about this stuff. How do you make a lower quality file without resizing it? I thought that was the definition of resizing. If this makes me sound stupid, so be it. I have a bunch of +/- 28 meg TIFF files that I would love to be able to post to UHH. I thought resizing was the key. Not so? I tried to load Fast Stone by the way and couldn't get it working. I'm running Widows 10.

rgrenaderphoto Loc: Hollywood, CA

FastStone is an image VIEWER with minimal, and that's being generous, editing capabilities. You have to export your TIFFs to JPEG format. I do so with Lightroom resizing to 3000 pixels on the long edge @ 300 dpi without problem.

CHG_CANON Loc: the Windy City

CPO - see this discussion for many of your questions above: https://www.uglyhedgehog.com/t-512745-1.html

JohnSwanda Loc: San Francisco

I think the suggestion to use Fastone was for people who don't have Lightroom and want a free program.

CHG_CANON Loc: the Windy City

Pixie J - if you have LR, you have all you need and don't need more software. The process to resize one image is described in this post: https://www.uglyhedgehog.com/t-512745-1.html

To run in batch, you just need to select all the images to process (1 - to unlimited) and then begin the Export dialog. The selected images are then processed in batch.

The questions on cell phone photos is a bit different, but the issue is the pixel dimensions of the file as created by the phone and / or processed before the file reaches you. My phone creates images at 2368x4208. As demonstrated in the link / discussion above, the DPI / PPI value within the file is immaterial. Rather, the quality of the print and physical size relates to the image resolution when divided by 300 to 200 to determine the available print sizes from the image files. Assuming a "perfect" phone image, my phone would print to 7x14 (300 dpi) or 11x21 (at 200 dpi).

Pixie Jackie Loc: New Hampshire seacoast

Hi CHG CANON in the Windy City -- Thanks for the URL. Will try it out when I get a chance. The cell phone resolution came up recently when I went to a family reunion, took the usual amount of too many pix, then sent them to Shutterfly for everyone to see and included 5 pix that others had taken with their cell phones and had sent them to me. My brother asked me to make up a book for him, using about 30 pix. So I took the easy way out. Walgreen's had a terrific 80% discount on their Photo Books so I decided to take advantage of it. But when I tried to include two of the cell phone pix in the book, I was warned that they would not print well. I guess the problem was caused by the fact that the had probably downsized them to send them to me via e-mail, so that's what I had to work with. I did use the cell phone images but, using the book's page format, selected the smallest size opening which worked out fine. Had them print up 6 books and everyone who received one was very happy! -- PixieJackie

SqBear Loc: Kansas, (South Central)

A quick and very easy program I use is InfranView. Used the program for years and it is FREE.
Resizes the photos and can re-name at the same time.
Photoshop will do the same thing, but I prefer InfranView.

Gene51 Loc: Yonkers, NY, now in LSD (LowerSlowerDelaware)

Faststone is more of a utility - and way faster than Lightroom. If you already have LR, then it works fine for batch resizing. When I resize a large number of images for a destination, I copy them into a dropbox folder and give the recipient the link so they can down the images.

Regarding the cellphone image, what is the dimension, in pixels, of the image. 72 dpi is misleading, it is just a metadata tag and has little to do with the quality of the image or how large you can print. . The number of pixels will determine how large the image can be. My Google Pixel phone captures a 12.3 mp image, which can print an image up to 106 in wide.

This should give you a little insight - https://us.whitewall.com/mag/how-to-print-smartphone-photos-in-big-sizes

BTW, creating a file at 300 "dpi" is no different than creating one at 15 dpi or 600 dpi - again, the dpi label is just a label and does not determine image quality or size in megabytes. All of the images were resized on export in Lightroom from 5740x3648 to 2400x1600.

BTW, creating a file at 300 "dpi" is no different than creating one at 15 dpi or 600 dpi - again, the dpi label is just a label and does not determine image quality or size in megabytes. All of the images were resized on export in Lightroom from 5740x3648 to 2400x1600, using a jpeg quality setting of 60. The file size for each image is the same at 1.13 mb, and as you can see the images are all the same size and quality. So if it makes someone happy to say they exported their image at 300 or 600 dpi - great - but it makes no difference at all.

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15 dpi

(Download)

300 dpi

(Download)

600 dpi

(Download)

Gene51 Loc: Yonkers, NY, now in LSD (LowerSlowerDelaware)

There are several aspects to image sizing - number of pixels, jpeg compression setting (quality) and image format - if you have an image that you want to post here for instance, you can use a lower quality jpeg setting - like 70% - to trim the file size down to 1 mb, AND you can select an image size that is not larger than 2048 on the longest side. This will result in a decent quality image that will fill most of a screen, unless you are targeting a 4K (3840 pixels) or a 5K (5120 o=ox=pixels) display.

Is there anything strange about your computer? Faststone can run on anything from Windows 98 to Windows 10 and everything in between. What issue did you encounter?