2
votes
2answers
874 views

How do I batch convert a bunch of pngs or other images into a single PDF on Mavericks?

I took a bunch of screenshots and I want to make them pages in a single PDF. Selecting all four in Preview and exporting to PDF only exports two (?), separately. The "Export to PDF" File menu function ...
1
vote
0answers
134 views

Decreasing resolution of screenshots increases file size

I've noticed that on my rMBP, when I try to make a screenshot smaller using Preview.app version 6.0.1 (Tools -> Adjust Size). When I'm trying to decrease the image size to upload it, the file size ...
1
vote
2answers
150 views

How to scan an image (map) using only 256 colors?

Is there a way to can an image on OSX using only 256 colors rather than millions or billions? I am scanning maps which only use a few colors, so I think I want to keep the color depth low so there is ...
1
vote
0answers
50 views

Problem starting Preview from the command line

Some of the time, when I start Preview from the command line, it fails to start normally. So for instance I will say "open myfile.jpg", and it appears to be trying to start Preview, but the icon for ...
4
votes
6answers
450 views

simplest way to open all images in a directory in Finder

When I have (and browse with Finder) a directory with a bunch of photos and videos (from e.g. my camera), I often want to open all the pictures in it. How can I do that? Right now, I select all ...
2
votes
2answers
141 views

Decreasing Image Size with Minimal Quality Loss?

I have a few scanned in images of some some pages that I need to digitise. They're each roughly around 5.1MB with 600 DPI, but I can't really afford to have scans so large because I only have around ...