Questions tagged [image-editing]

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

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17 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 want Preview to save documents only when expressly directed. I enjoy using Auto-save and ...
2
votes
1answer
222 views

How to invert colors of a picture on Mac?

How do I invert the colors of an image? I'm using macOS 10.13 and I wish to use built-in Apple software or freeware.
1
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2answers
48 views

How do I disable Mojave's Finder quick actions for images?

I have a few folders with a large number of images that I typically sort by modification date. Sometimes I'll accidentally trigger one of Mojave's new Quick Actions, such as rotating the image. This ...
27
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5answers
28k 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 ...
2
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1answer
181 views

How can I preview an image in its original size?

I have 2 images in a directory and I see from the Get Info that one has Dimensions: 532 × 1051 and size 45KB on disk. The other based on the Get Info has Dimensions: 1440 × 2900 and size 379KB on disk....
4
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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 ...
2
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0answers
434 views

View QTVR files with Google Cardboard

I have a lot of old QuickTime VR cubic panorama images which I want to view with my Google Cardboard, preferably using Google Cardboard iOS app. I think for this I would need some converter, which ...
32
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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 (...
2
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1answer
62 views

Can I use Preview to make this GIF file size smaller?

Here is a 2.6 MB GIF that I would like to post in a Stack Exchange question. That means it needs to be under 2 MB or 2 MiB (I can't remember which). https://techcrunch.com/wp-content/uploads/2019/02/...
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0answers
16 views

Reduce color richness to reduce file size of an image with Preview.app

In the olden days, I recall using my Mac to reduce the richness of color in an image to reduce its file size and memory usage. I remember switching from millions of colors to thousands of colors. Is ...
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4answers
131 views

How to merge multiple image files into one pdf file with page and its original size for every image?

I have some images and I need to print it to ONE pdf file with size of pages as size of its images. How can I do that? In other words I would like to achieve sth like this: Read rectangle is a pdf ...
1
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1answer
78 views

How can I save a bmp (bitmap) image file at 16bpp?

I need to save an image as Windows Bitmap BMP A1R5G5B5 16bpp. Source files are 32bpp image files (PNG and/or Windows Bitmap). Preview saves bmp images at 32 bits per pixel (bpp). XnConvert saves bmp ...
189
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16answers
500k 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 |...
0
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2answers
85 views

How to resize a screenshot image on a Mac so that it is “regular size” when posted on the Internet?

I sometimes take a screenshot on a Mac (OS X Mavericks), by CMD-Shift 4, and resize it to 50% width and height in Preview. But when posted on the Internet (for example, on an online forum or on ibb....
0
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5answers
19k views

How to delete text from an edited picture in preview?

I recently edited a picture in preview by adding text to it. I then saved it, not realizing that the original would not be saved (without the text). When I went in to the picture later to delete the ...
1
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2answers
581 views

Why does the contrast change when you zoom out of an image on Preview on mac?

If you click on an image file in finder on the mac and press the space bar, Preview will preview the photo for you. After doing this, you can zoom in on the image (by pinching two fingers apart from ...
0
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1answer
33 views

Annotation/Highlight doesn't work in Apple Preview

I have a screenshot. I want to highlight some parts of it. The highlight icon is disabled; the Tools > Annotate > Highlight Text is greyed out. Why? And how can I highlight easily on my ...
3
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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 ...
2
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1answer
87 views

How to transparently mark a picture in preview?

I've successfully marked a picture with preview. The only part left is to make that mark transparent so it doesn't block the whole picture. How do I do that? Here's an example of what I'm trying to ...
5
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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 ...
1
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0answers
17 views

Looking for a very simple image viewer for usage of viewing graphic design previews

Ive been looking for a program, that I can use to preview design outputs. On windows Photofiltre used to do it all very fast, but sadly it is for windows only. So Im looking for very simple (fast) UI,...
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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 ...
2
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1answer
1k views

Disable shape detection in Preview's annotation tools

When I try to draw a line on an image using Preview's annotation tools, it doesn't remain as I drew it but instead the line is drawn linear. How can I set it to be preset as nonlinear? So looking to ...
94
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3answers
71k 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 ...
3
votes
1answer
720 views

Preview.app version 7 in macOS Sierra

I have been using the Preview.app that comes with Mavericks until El Capitan. The reason that I have been copying that application instead of using the newer version is that it works better for my ...
2
votes
1answer
56 views

Creating New Images in Preview

It seems to me that the macOS Preview app's purpose is to edit existing images. I'm wondering if it's possible to create new images from scratch. For example, I would like to create an illustration ...
2
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2answers
56 views

Update Photo on iOS

I would like to update a photo (Photo A) with another (Photo B). The result should be that Photo A looks like Photo B, but can be reverted back to Photo A. Is there an extension that will let me do ...
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?
3
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2answers
727 views

What is the purpose of an AAE file?

First, some background: For those of you who edit photos using Apple software, you may have encountered AAE sidecar files, which are generated automatically by the Photos app (for iOS or macOS) when ...
2
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4answers
46k views

Why does iphoto say “Image Cannot Be Edited. This photo or container may be read only”?

Not sure what's going on here. I just imported some photos from my iphone that I took about an hour ago. I have it set to automatically import via iCloud so they were of course already on my Mac ...
1
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0answers
27 views

ImageMagick: convert [label:] need help

There is a command: /Path_to/convert \ -background LightBlue1 \ -border 10 \ -bordercolor red \ -font Helvetica-Bold-Oblique \ -fill blue \ -pointsize 72 label:"\n`date "+DATE: %Y-%m-%d%nTIME: %H:%M:%...
5
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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 ...
1
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1answer
32 views

MacOS Photos App: Resizing a Photo

I am trying to get used to the Photos App on MacOS, but there’s one thing I can’t find, either in the Help or in all of my web searches. How can I resize an image? By that I mean scale it down. I can ...
0
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0answers
64 views

How can I cut and paste one part of a photo on top of another in iOS?

I have two versions of the same image. One has some text on it (three lines of text), and the other is the original with no text. I want to remove the bottom line of text. To do this, I cut and ...
1
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3answers
2k views

Is it possible to copy text from image?

Is there any tools to copy text from video's or images?
2
votes
1answer
612 views

Safari showing border of transparent PNG

A website I work on has a partly transparent png image overlying parts of the website. The image is resized to 100% of the browser window width. In all other browsers the transparent parts behave ...
12
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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 ...
24
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1answer
48k 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 ...
2
votes
1answer
100 views

Is it possible to control dimensions of cropping an image?

I'm looking for a tool that can help reshape images to specific dimensions, but I'm not sure if there's a term easy to search for tools that support that. Preview can resize images to specific ...
1
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0answers
242 views

macOS Photos.app: How to save photos with adjustments to Finder?

Q: In Photos.app I have stored images with adjustments. How can I back them up non-destructively to the Finder? The adjustments were applied exclusively with the built-in Photos.app in iOS 10 and iOS ...
2
votes
1answer
219 views

How do I delete photos from Apple Photos retaining only those marked as favorite?

This should be a fairly easy task to carry out, but I cannot seem to figure out a straightforward way of deleting all but favorite photos from the Apple photos app. One workaround is for me to create ...
1
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1answer
81 views

Photo library app recommendation

With the new Photos in macOS High Sierra, Apple restored some of the former iPhoto/Aperture functionality (always-on sidebar, improved auto-organization [into moments, still no user-defined events ...
4
votes
1answer
1k 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
436 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 ...
2
votes
1answer
4k views

Cropping tool for 4:3 or 16:9 images with Preview.app?

Is there some trick to allow me to crop a screen shot in Apple's Preview.app to 4:3 or 16:9 dimensions? I did notice holding down shift causes a 1:1 rectangular selection, but I need other common ...
0
votes
1answer
25 views

Shrink all images in pages document

I have a huge (filesize) pages document, which I suspect is due to all the images in it. The images were copied from elsewhere and pasted in. A lot of the images are original resolutions of 1080 ...
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?
1
vote
1answer
42 views

Breaking pdf to various images, compress, and recombine

I want to save each page of a PDF file as separate image, compress them, and recombine back as PDF. Some PDF files I often use are strangely large in size. I mean, some 100 pages but some 200M. I ...
2
votes
1answer
732 views

Smart cropping of images and add border

I need to perform batch cropping to approximately 3000 images. Each image is for a different item. What I need is a crop tool that can define the item from the background and add specific amount of ...
1
vote
2answers
320 views

An image editor with an API (preferably python-oriented)

Is there an image editor for OS X (e.g. Preview) that can be operated programmatically, preferably with python, or that has a built-in programming language, like MS Word has VBA built-in (at least on ...