The dpi term should be limited to print output on a laser printer or ink-jet printer; ppi is typically reserved to the dimensions of an image as it’s stored in a file or view on a screen. Click ‘Convert” to change raw image to JPEG on mac for free. 2) Online-Convert. Another online raw to JPEG converter is Online-Convert, not only supports most of raw image formats, Online-Convert also allows users to customize image output. You can tweak the quality settings, change size, adjust color/dpi, even crop pixels. Increase Resolution of Image without Photoshop on Mac Many people know how to increase image resolution photoshop but when it comes to mac they face trouble. If you are using Mac and you want to increase the resolution of image without Photoshop on Mac then you can try out Preview. Oct 07, 2017 See, DPI, dots per inch, is a ratio, not a resolution measurement. It's the relationship between the number of pixels in an image and the size at which the image is sampled (in the case of scans or exports from programs like PPT) or reproduced (in the case of publications, printouts, etc.) By itself, DPI doesn't tell you anything.
- Change Dpi In Photoshop
- How To Change Dpi
- Free Mac Software To Change Dpi Of Jpeg File
- Free Mac Software To Change Dpi Of Jpeg Image
With the size of the picture some digital cameras around today can produce, it wouldn’t be impossible for you to have images with a resolution of several thousand pixels square and a file size of tens of Megabytes. Having files like this is great when you want to view them with the best quality and print them out, but when it comes to distributing them to others, uploading to online photo albums or just keeping them on your phone etc, trying to do it with massive files is a waste of time and bandwidth.
Shrinking your photos to a lower resolution or converting them to a more size efficient format before emailing or uploading is a sensible solution. It’s far easier to shrink a 10MB JPEG file down to 1MB and send that instead while only noticing a minute drop in quality. We’ve previously listed 10 online services where you can easily resize images from your web browser without installing any software but they are not meant for multiple images. Here are 10 freeware tools to help you convert and resize multiple images.
1. Shrink PicShrink Pic is well suited to users who email lots of photos to friends or upload batches of files to online image galleries etc. What it does is sit in the system tray and waits for you to upload images through a file dialog or drag and drop onto your browser, email program or messenger program. Then it intercepts the files and resizes them automatically to the configured settings, and optionally converting other formats to jpeg.
The result is you can drop huge photos into your email but the small converted ones will get sent instead. The list of supported applications is a little outdated on the website, but during a quick test on Win 7 x64, Shrink Pic worked fine on the latest Google Chrome, Firefox and also Internet Explorer 9, although it didn’t seem to work with Windows Live mail. Compatible with Windows XP, Vista and 7.
Download Shrink Pic
2. FILEminimizer Pictures
This former shareware tool is now a free version for personal use. FILEminimizer Pictures is mainly a tool to convert large images from the most popular formats to a compressed and resized jpeg making it smaller in file size to send over the internet. It doesn’t recognize loading a folder into the program and there is a limit of loading 500 image files at once, but usage is easy, and you can choose the output quality with a 3 step slider.
There are some useful options such as a direct to email “Pack & Go” button, a direct upload to Facebook button, an image search window, and if you select custom compression there are some preset image resize resolutions and control over the compression ratio. The program also creates a right click context menu entry for easy access and works on Windows 98 up to Windows 7. The installer can be extracted with Universal Extractor to make it portable.
Download FILEminimizer Pictures
3. Picture Resizer
Picture Resizer is a strange tool because its options aren’t controlled in a window but through the programs file name! Go to the website, enter some options in the wizard for how to process the images and the name you need for the executable is given. Whole folders can then be dropped onto the file’s icon and they will be be converted automatically. Double clicking the executable will show a small window where you can enable a right click context menu entry.
Something else it’s good at is running from the command line with an extensive number of parameters making this program an indispensable tool for resizing from within batch files and scripts. As it’s a small executable of 400K, you can make a copy of it, create a number of your own presets and simply drop your files onto the different icons to perform different resizing or compression tasks. Sadly Picture Resizer can only process JPG files. Works on Windows 2000 to 7 and has a separate 64-bit version.
Download Picture Resizer
4. High Quality Photo Resizer
What makes HQ Photo Resizer easy to use is the wizard style steps you go through to process the files. Select the files or folder you want (recursing into sub directories is not supported), then choose where to save the output files to. There are 8 different file types you can save to and resizing can be custom or from a number of presets. There are 37 special effects that can be applied to the images such as blur, sharpen, emboss or negative etc which may or may not prove useful to you.
High Quality Photo Resizer is compatible with Windows 2000, XP, 2003, Vista and Windows 7 x32 and x64.
Download High Quality Photo Resizer
5. Plastiliq ImageResizer
ImageResizer is an elegant, fast and simple to use tool that allows you to batch convert and resize images (BMP, PNG, JPG and TIFF) in a variety of different ways including width, height, fit, percentage and the current desktop resolution. They can then be output into one of the same 4 input formats to the folder of your choice. Options such as leaving smaller files alone, changing date and time attributes, overwriting existing files and the JPG compression ratio can be configured from the Options window.
Although Plastiliq ImageResizer can be made portable by installing and copying the folder or extracting with Universal Extractor, it’s a shame there isn’t an official portable version. Compatible with Windows XP, Vista and 7.
Download Plastiliq ImageResizer
6. FotoSizer
Fotosizer has a good blend of being easy to use while including enough resizing and converting features for most people’s needs. Various custom or preset resizing options are available along with 3 simple effects (black and white, negative, sepia), flip and rotate, and also the option of keeping JPEG Exif or Xmp tags. The output file type can be any of the 5 of the most popular; BMP, JPG, PNG, GIF and TIF.
Fotosizer also has a renaming system which can be a little more advanced if you want to be more precise about the names of the output files. 6 presets or 10 mask patterns can be combined to include picture information or dates etc. An archiver such as 7Zip can extract the installer to make the program portable if you want, and it works on Windows 98 to Windows 7.
Download FotoSizer
7. FastStone Photo Resizer
FastStone’s tool is an incredibly powerful program for batch converting images and also has a dedicated batch renaming function in case you don’t want to change the files and just give them more orderly names. It also includes its own file browser in addition to the standard drag and drop, and the amount of supported images is quite large with Photoshop PSD files and ICO icon files among those not found in many other batch image converters. There are 7 output image formats, one of which is to PDF.
The Advanced Options button opens up another whole new area where there are a number of useful and advanced functions that can be applied to the images. These include; resize, rotate, crop, canvas size, color depth, brightness / contrast / gamma / sharpness adjustments, change DPI, add text or watermark and border / framing effects. If you want powerful converting options, FastStone is the 1st tool you should look at. Installer and portable versions are available and compatible with Windows 98 up to Windows 7.
Download FastStone Photo Resizer
8. EasyImageSizer
EasyImageSizer is like a more basic and less powerful version of FastStone Photo Resizer, which is good as an alternative if you don’t require the extra functions. The odd thing is only the compression level and output location are visible when you first run the program, the extra options like resize, rotate, rename, overlays and Exif need to be turned on by going to the Plugins menu or More Functions button.
Conversion speed is pretty fast and there are 10 output image formats you can convert to. Works with Windows XP, Vista and 7.
Download EasyImageSizer
Change Dpi In Photoshop
9. Converseen
Converseen is an open source application and the huge amount of image file formats supported makes it very useful. There are over 100 in all and that includes what the program can read in and also write out to. One thing it does lack though is the option to simply add a folder full of images, the image files themselves have to be added. Standard options are there to resize the images and you can also alter the DPI of them as well.
Compression level settings are accessed via the “Images Settings” button, and another useful option is the ability to replace a transparent background with a specified color. The program works on XP, Vista and 7.
Download Converseen
10. IrfanView
Although known more for its image viewing capabilities, Irfanview boasts quite a powerful batch conversion function which is accessible from the program by pressing B or from the File menu. There are 3 main modes; batch conversion, batch rename or both in combination. As you might expect, it can load in and save out to a large number of different file formats, and JPG / GIF options such as Exif data and transparency are accessed through the Options button.
IrfanView has an Advanced button that gives you the opportunity to make a large number of different adjustments to the images such as crop, resize, DPI, color depth, rotate / flip, overlay, watermark and sharpen or blur functions to name just a few. The sheer amount of text and tick boxes might be slightly overwhelming for some, but there’s no denying the IrfanView batch function has a great deal of power behind it. Works on Windows 9x and above, a portable version is available.
How To Change Dpi
Download IrfanView
There are many of these convert and resize tools around and a number of other image viewers also have some form of conversion function built in. If you want great power and control over your image converting, FastStone and IrfanView are loaded with just about everything you could want. FotoSizer is a good compromise between features and ease of use, or if you want simple to use and functional, Plastiliq ImageResizer is a neat little program to try out.
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This is my favorite:
adionSoft Fast Image Resizer
adionsoft.net/fastimageresize
very small, no installation, works fast, simple options, supports drag and drop.
Hasn’t been updated since 2010 but that doesn’t matter as it works great on Windows 10 and it’s less than 1 MB in size.
ReplyadionSoft Fast Image Resizer
adionsoft.net/fastimageresize
very small, no installation, works fast, simple options, supports drag and drop.
Hasn’t been updated since 2010 but that doesn’t matter as it works great on Windows 10 and it’s less than 1 MB in size.
ugh, not found what i was looking for..
My need is:
1) providing one photo.
2) applying all sort of effects not too aggressive
3) choose number of photos to create
4) the app will create each photos with a progressive different level of filter (effect) per image
Reply2) applying all sort of effects not too aggressive
3) choose number of photos to create
4) the app will create each photos with a progressive different level of filter (effect) per image
That sounds like something you will only be able to do manually or by making a batch file.
ReplyHeyy Thanks for sharing the information . My query is related to resizing the images on mac. How can I resize images on mac ? What are the specific software for resizing images on mac?
ReplyI forgot to mention: Fotosizer will include subfolders, and preserves the folder structure.
ReplyI’ve downloaded Fotosizer and have been very happy with it. I had already copied all my photos to a USB hard drive, and also backed them up to Google Photos. I wanted to downsize them in place on my computer, overwriting them rather than making a copy.
Fotosizer has many options, and one is to put the resized photo in the same folder, and you can specify that the filename should be the same as the original. You can also specify which file types should be downsized: I didn’t want to downsize .psd files, or raw files, or videos, or any non-photo files that are in my folders. Since over 90% of my photos are .jpg, I chose to downsize only those.
The program is easy to use. (I’m using it on Windows 10 Pro.) It’s relatively quick, it saves your settings automatically, and it opens to the folder you last copied, so you don’t have to keep notes of how far you’ve got.
I had tried to do this with Photoshop Elements, but it insisted on making a copy of the original, and I coouldn’t find any way of eliminating file types I didn’t want to process.
ReplyThe program is NOT easy to use. (I’m using it on Windows 10).
ReplyHere is another great free online tool: jpgtopdf.com . It allows you to convert images to pdf quite easily. You don’t need to register and it’s completely free :)
ReplyFastStone Photo Resizer is very easy to use and best re-sizing simple software .
Resize based on one side – very good option.
Resize based on one side – very good option.
Only two settings
1..Adjust image size ( width and height in PIXEL or in percentage ) IN ADVANCED OPTIONS
2.Adjust image QUALITY (FILE SIZE ) IN OUTPUT FORMAT SETTINGS
Reply1..Adjust image size ( width and height in PIXEL or in percentage ) IN ADVANCED OPTIONS
2.Adjust image QUALITY (FILE SIZE ) IN OUTPUT FORMAT SETTINGS
“FILEminimizer Pictures” , #2 on this list, did excatly what I wanted, and, it’s free (NOT free trial).
You can also control the quality of the compression across the board for all the batch.
You can also control the quality of the compression across the board for all the batch.
Thanks so much.
ReplyThere is great online image resizing tool imagechanger.net
ReplyJust found a great syntax menu tool, open-source:
imageresizer.codeplex.com/
Doesn’t get easier or better than that.
Replyimageresizer.codeplex.com/
Doesn’t get easier or better than that.
Very well illustrated. Good one.
ReplyWe can use a very fast image resize tool at imageresizertool.com. It works like a charm.
ReplyI have IrfanView but I never realized that it has image converter options that I needed! Thank you very much for the info!
ReplyThanks for the list!
I use FastStone Photo Resizer – It is great!! Load with features, easy to use, you can save the configs – Great!
Reply![Free mac software to change dpi of jpeg online Free mac software to change dpi of jpeg online](/uploads/1/2/6/4/126400451/481468767.png)
Raymond thanks
ReplyLeave a Reply
Note
Office 365 ProPlus is being renamed to Microsoft 365 Apps for enterprise. For more information about this change, read this blog post.
You can change the export resolution in Microsoft PowerPoint by saving a slide in a picture format. There are two steps to this process: using the system registry to change the default resolution setting for exported slides, and then actually saving the slide as a picture at the new resolution.
Step 1: Change the export resolution setting
Important
Follow the steps in this section carefully. Serious problems might occur if you modify the registry incorrectly. Before you modify it, back up the registry for restoration in case problems occur.
By default, the export resolution of a PowerPoint slide that you want to save as a picture is 96 dots per inch (dpi). To change the export resolution, follow these steps:
- Exit all Windows-based programs.
- Right-click the Start button and then Run. (In Windows 7, select Start, and then Run.)
- In the Open box, type regedit, and then select OK.
- Locate one of the following registry subkeys, depending on the version of PowerPoint that you're using:PowerPoint 2016HKEY_CURRENT_USERSoftwareMicrosoftOffice16.0PowerPointOptionsPowerPoint 2013HKEY_CURRENT_USERSoftwareMicrosoftOffice15.0PowerPointOptionsPowerPoint 2010HKEY_CURRENT_USERSoftwareMicrosoftOffice14.0PowerPointOptionsPowerPoint 2007HKEY_CURRENT_USERSoftwareMicrosoftOffice12.0PowerPointOptionsPowerPoint 2003HKEY_CURRENT_USERSoftwareMicrosoftOffice11.0PowerPointOptions
- Click the Options subkey, point to New on the Edit menu, and then click DWORD Value.
- Type ExportBitmapResolution, and then press Enter.
- Make sure that ExportBitmapResolution is selected, and then click Modify on the Edit menu.
- In the Edit DWORD Value dialog box, select Decimal.
- In the Value data box, type the value of the resolution that you want such as 300. Or, use the parameters in the following table.
Decimal value Full-screen pixels (horizontal × vertical) Widescreen pixels (horizontal × vertical) Dots per inch (horizontal and vertical) 50 500 × 375 667 × 375 50 dpi 96 (default) 960 × 720 1280 × 720 96 dpi 100 1000 × 750 1333 × 750 100 dpi 150 1500 × 1125 2000 × 1125 150 dpi 200 2000 × 1500 2667 × 1500 200 dpi 250 2500 × 1875 3333 × 1875 250 dpi 300 3000 × 2250 4000 × 2250 300 dpi NoteSee the Limitations section for more information when you set this value. - Select OK.
- On the File menu, select Exit to exit Registry Editor.
Step 2: Export the slide as a picture
- In PowerPoint, open your slide presentation, and then open the slide that you want to export.
- On the File menu, select Save As.
- In the Save as type box, select one of the following picture formats:
- GIF Graphics Interchange Format (.gif)
- JPEG File Interchange Format (*.jpg)
- PNG Portable Network Graphics Format (*.png)
- TIFF Tag Image File Format (*.tif)
- Device Independent Bitmap (*.bmp)
- Windows Metafile (*.wmf)
- Enhanced Windows Metafile (*.emf)
Note
You may want to change the picture's save location in the Save in box. You may also want to change the name of the picture in the File name box.
- Select Save. You will be prompted with the following dialog box:Select Current Slide Only. The slide is saved in the new format and resolution, in the location that you specified in the Save in box.
- To verify that the slide is saved in the resolution that you specified, right-click the picture, and then select Properties.
Limitations
When you set the ExportBitmapResolution registry value in PowerPoint, there's a maximum DPI limitation to consider for some versions of PowerPoint.
Maximum DPI is dependent upon the slide size. The formula is:maxdpi = (sqrt(100,000,000 / (slide with * slide height)), where slide width/height are in inches.
For example, for a standard 13.3' x 7.5' slide, the equation would be:sqrt(100,000,000 / (13.333 * 7.5) ) = 1000.
PowerPoint 2019, 2016, 2013, and 365
There is no fixed DPI limit. Slide export is only limited by how big the resulting bitmap gets. PowerPoint can support creating bitmaps up to ~100,000,000 pixels (width x height). For standard widescreen slides (13.3' x 7.5') this means a maximum DPI of 1000. For the old style 10' x 7.5' slides this means a maximum of 1155 DPI, but depending on slide size, this can be more or less.
PowerPoint 2010 and older
The maximum resolution that PowerPoint can export is 3072 pixels, based on the longest edge of the slide. For example, the standard 10' × 7.5' slide has a maximum effective DPI value of 307. The 3070-pixel result (10 × 307 = 3070) falls within the 3072 limit. However, any DPI setting that's greater than 307 for a standard slide reverts to the limit of 3072.
Decimal value | Pixels (horizontal × vertical) | Dots per inch (horizontal and vertical) |
---|---|---|
307 | 3072 × 2304 | 307 dpi |
The 3072-pixel limit also applies to saving the slide programmatically.
For example, the following code programmatically saves a picture with dimensions of 3072 × 2304 pixels:
Free Mac Software To Change Dpi Of Jpeg File
More information
Free Mac Software To Change Dpi Of Jpeg Image
For information about changing the size of your slides, see Change the size of your slides.