Questions tagged [image-editing]

tag for image manipulation programs that allows the user to edit an image

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196
votes
16answers
507k views

How to combine two images into one on a Mac?

Say I have two photos (or any images), for example with the following dimensions: +----------+ +----------+ | | | | | | | | |320 x 428 | and |...
96
votes
3answers
73k views

Change canvas size in Preview.app without scaling image?

I have a PNG that I want to add additional content to. For this I need to increase the canvas size of the image: Just make the image larger, but without scaling the existing contents (which the Adjust ...
54
votes
6answers
136k views

Tool to quickly hide/blur/redact text in screenshot?

I’ve captured a screenshot and I want to share it (on Stack Overflow, actually), but I need to blur/hide out a couple words in the screenshot. Is there a tool to quickly do this?
32
votes
8answers
32k views

Is there an image editor like Windows' Paint for OS X?

I tried out several image editors mentioned on this site but some of them (like Pixen and Seashore) were very disappointing. These apps were too simple and low level. What do you suggest for a (...
31
votes
5answers
30k views

How to convert a HEIF/HEIC image to JPEG in El Capitan?

So, here’s the thing. I have a new iPhone and an old Mac. iOS 11 (still in beta as of today) and El Capitan (no more updates for this Mac). I use iCloud photo library in both devices. When I take a ...
24
votes
1answer
49k views

Does the Preview app have a freehand pen/pencil tool?

The Preview app has markup / annotate tools like rectangle, oval, line, text, speech bubble, thought bubble. Is there a pen or pencil tool that lets you draw lines in a freehand way? (I'm using ...
23
votes
7answers
35k views

What's that site that frames screenshots in iPhone/iPad/Mac stock photos?

Late last year in 2012, someone had launched a site that let you upload screenshots (or any image really) and it would embed them into nice stock photos of a Apple phone, tablet or laptop/desktop. It ...
21
votes
11answers
6k views

What's a good program to batch resize 100,000 jpg images?

The program should run in batch mode to resize all files in a folder and then save new files to different folder. An option for setting jpg quality would be great, too.
19
votes
5answers
25k views

Basic photo editing on OS X [duplicate]

I need to edit a photo on my Mac. I wish to take two photos and paste them together to create one that's larger, containing both. I couldn't figure out how to do this with iPhoto. For Windows you ...
12
votes
9answers
14k views

Are there any “App Store quality” apps for creating animated GIFs from a series of image files?

I searched the App Store for "animated GIF" but the only returned app was one to convert a movie file into an animated GIF. I need to go the other way: I have a series of screenshots taken of an app ...
12
votes
3answers
14k views

How can I combine multiple screenshots in Skitch?

With Skitch, I often find myself wanting to take screenshots of different parts of the screen, annotating them, and combining them into one image. I could use a separate program for this last step, ...
10
votes
3answers
5k views

Image Viewer like Windows Image Viewer

I want a good image viewer for mac. When I open any random image from a folder like this: I want to be able to navigate to next/previous image with left and right arrow. Seems so simple but I ...
9
votes
7answers
21k views

Maintaining Aspect Ratio while Image Cropping using Preview

I like the convenience of being able to crop jpg/png images with Preview, but I would also like to be able occasionally to restrict the aspect ratio of the cropped image. This is useful, for instance, ...
8
votes
3answers
1k views

How can I obfuscate a small section of a image on macOS?

How can I obfuscate a small section of an image on macOS? I would like to obfuscate private information in an image before I share it. Is there a way to do it on macOS?
8
votes
1answer
11k views

How can I combine multiple photos into a single image on my iPhone?

I want to combine multiple photos like this I tried many apps like diptic, picstich and many more. But they all combine like this. Just a bit of clarification: I don't want to create panorama, don'...
7
votes
3answers
18k views

How to install plug-in in Gimp on OS X?

I've got the Gimp for Mac OS X installed and working in my installation of Mac OS X 10.6.4. A very important tool I need is the David's Batch Processor plugin ( http://members.ozemail.com.au/~hodsond/...
7
votes
7answers
6k views

Mac Vector Image Tools

I am looking for a vector image creation/editing tool for the Mac. My primary focus with be creating/editing images (mainly icons) for application development. I think I will be purchasing the full ...
6
votes
7answers
29k views

What is the quickest Mac OS X app to use to remove the background of an image to make it transparent?

I followed the instructions in How to use Preview for Basic Image Editing: Remove Backgrounds and Extract Shapes to use the Preview app to remove backgrounds with an image. The problem is that the "...
6
votes
1answer
10k views

Reduce opacity of existing image

Can Apple's Preview app be used to reduce the opacity of an existing image? I might be asking this wrong. To be clear, I've Googled it extensively but Google seems to think what I want is to remove ...
6
votes
3answers
2k views

Choosing hexadecimal web colours

How can I choose hexadecimal web colours (like #000000 and #fffff) to use in system and third party apps? (e.g. an image editor like GraphicConverter)
6
votes
1answer
6k views

Rotate Selection in Preview

I am doing something I thought would be pretty easy, but apparently I was wrong. I am wanting to edit blueprints for my sister-in-law's new bathroom redesign. I have made selections to the PNG ...
5
votes
5answers
12k views

How to batch rename images, in reverse numerical order?

My camera names its images IMG_0001.jpg, IMG_0002.jpg, IMG_0003.jpg, etc. I have about a thousand images and would like to rename them without having to do it manually if possible. Is there a good ...
5
votes
2answers
9k views

Using Automator to batch crop with custom coordinates / measurements

I'm trying to crop large batches of images automatically. I'm currently using Automator's Crop Images action, but it is lacking in options. I can specify a width and height, and then it performs a ...
5
votes
1answer
2k views

how can I undo a picture I accidentally edited in preview?

The was a picture that I was looking at in my computer, I drew a line with the preview tool, my computer became really slow and it didn't let me do anything so I just force quited Preview. after I ...
5
votes
3answers
5k views

Correcting wide angle photos from iPhone 6 on iOS

I'm looking to correct lens distortion from my iPhone 6 when I take certain wide angle photos. Take this picture of Pittsburgh taken on the Monongahela river just upstream of the point: If I try to ...
4
votes
3answers
6k views

How to trim many files using adobe photoshop

I have 300 png files. I want to trim each of them. But for this I need open each file and make changes (even if I make script for trimming and save it will be long to open each file and do trimming). ...
4
votes
1answer
2k views

join multiple png images

Often I find myself needing to take many PNG images and join them into a larger image. Specifically, in this particular case, I'd like to take 2 PNGs of roughly equal width (±2px) and different ...
4
votes
2answers
460 views

How to crop-rotate video

How can I crop rotate a video, so that it crops and rotates at the same time. I know that there is an option for this in Photos.app, but it only works for photos. Is there some other application that ...
4
votes
3answers
4k views

Photo Metadata Editing / Editor

Are there any apps for OS X that can edit photos metadata (such as keywords, etc.) without all the bells and whistles of full stack photo management apps (such as Lightroom, iPhoto, etc.) with the ...
4
votes
1answer
2k views

Software to losslessly optimize batches of image files

I frequently work with large numbers of image files to be used in websites. I'm currently using Photoshop's 'Save for Web' tool to find the most efficient way to compress images, but that takes some ...
4
votes
4answers
2k views

Hotkeys being captured in save menu in GIMP?

I just installed GIMP (from the dmg on the GIMP website) on my new MacBook Pro running Mavericks. Unfortunately, when I went to go export/save an image, the keys that are hotkeys in GIMP (e.g. 1 is ...
4
votes
3answers
283 views

Tool for lossless rotation of images

As you might know, Preview has a lossy rotation feature. Could you please recommend a tool that allows images rotation in a lossless way?
4
votes
1answer
683 views

A true large image viewer for OS X?

Are there any image viewers out there that can navigate a truly massive (i.e. 500 megapixel/250MB) JPEG image? Everything but Preview has crashed for me. Preview does OK, but doesn't have many ...
4
votes
1answer
711 views

How do I draw an arrow in Acorn?

Yes, I know Acorn isn't Visio, but still let me ask the question: How can you draw an arrow with Acorn? I am talking about the kind of arrows that Skitch or Jing would draw, and that you typically ...
4
votes
0answers
113 views

Disable auto-save in Preview (only Preview): Mojave edition

This has been asked before, on earlier OS versions, but doesn't seem to have gained satisfactory answers. I'm looking for a way to disable auto-save in Preview (only). Background: In OS X Lion, ...
4
votes
0answers
692 views

How do I edit (remove frames from) an animated GIF using Preview (Mountain Lion)

I've been able to access the animated GIF, similarly to this thread, but I want to remove frames from the GIF. Is this possible with Preview, or do I need to use a different software?
4
votes
2answers
237 views

Which photo websites have iPad support for editing and ordering prints, cards and books?

I've tried the Shutterfly iPad app, which allows uploading photos, but doesn't support any other functionality available on the website. And I can't edit photos or design cards and books from the ...
3
votes
5answers
252 views

Free OS X solution for getting screenshots, cropping and annotating them

I am looking for a simple/fast, free solution that will allow me to get screenshots from different windows, crop areas that are interesting to me and adding some comments to them. It's main use case ...
3
votes
2answers
5k views

How to Automate Cropping Images?

Is there any way to automate cropping images on Mac? (Not the whole file, but part of the file.) I've tried this with Automator but the cropping function just makes the whole image smaller instead ...
3
votes
1answer
6k views

How to resize an image in Keynote or Pages?

If I resize the width of an image in Keynote or Pages the height resizes as well. The same thing happens vice versa. How can I resize the width without affecting the height and vice versa?
3
votes
1answer
5k views

Reduce image file size to certain size

I have some tiff files of (scanned docs) which are too large than required. I tried to export with Preview while applying filter "Reduce File Size". The new file came out to be quite small 36KB ...
3
votes
1answer
921 views

How can I stitch a set of images together?

I have a set of images that are named foo-N.jpg, where N is a number from 0 to 100. I'd like to stitch them together such that I have one long image, where foo-0.jpg is at the left and foo-100.jpg is ...
3
votes
2answers
10k views

How to draw a curve line on Pixelmator

This is probably one of the most important / useful feature in any image editing software - any knows how to draw curved line in Pixelmator?
3
votes
2answers
369 views

How hard can it be to add a “rotate” action?

Can you guys teach me how to rotate an image so that when sent by email we actually send it in the right rotation?
3
votes
2answers
1k views

place text over image without imagemagick

I have a png image file which I would like to overlay text onto, via the command line (for use in a Makefile). The text to be overlaid is dynamic, decided at the time the image is modified. I am ...
3
votes
3answers
7k views

Why can I not edit some photos Imported from an iPhone to Windows Vista?

Lots of people are complaining about this issue on the Apple Support forums. Some people have some work-arounds but there aren't any explanations of what's going on. I've checked out permissions ...
3
votes
4answers
12k views

Are there sites that support editing and ordering photo prints, cards, and books on an iPad?

I'm reposting this question (unchanged) from webapps.stackexchange.com, because I've received no answers there and this seems like an appropriate question for the Apple Stack Exchange site. I've ...
3
votes
2answers
35 views

Why does macOS Preview show different sizes before/after resize?

An image saved locally on my MacBook Pro (macOS Mojave 10.14.3) has a size of 4.4 MB, as you can see in the screenshot below: 4.4 MB is the original size of the image, which has a resolution of ...
3
votes
1answer
58 views

How can I center a PNG with a transparent background using the CLI?

I'd like to come up with a technique for properly posting images on this site on my Macbook using a CLI tool to do the conversion. This is a sample image that I'd like to make it so that the image is ...
3
votes
1answer
1k views

Filtering a photo of a document to look like a proper scan

So there are a couple of iOS apps that "scan" documents and automatically do some processing to make the image look like a quality scan from a real scanner. When I'm trying this on the Mac with ...