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Questions tagged [preview]

Apple Preview is a program included with every version of macOS that permits displaying and limited editing of common 2D and 3D files using Apple's Core Image and Quartz frameworks.

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26 views

PDF displays wrongly with Preview but correct with Acrobat Reader

I downloaded a math book in pdf format on macOS Sierra 10.12.6. I have two versions of the PDF, one created with iText 2.1.7 by 1T3XT and the other with PDF-XChange (PDFTools4.exe v4.0.0201.0000). ...
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1answer
20 views

Highlighted text is showing up abnormally on “highlights and notes” sidepane

I am having an odd bug with the Preiview app. Text is getting highlighted normally. However, on the "Highlights and Notes" sidepane, text slightly offsetted from the actual highlight is being ...
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0answers
22 views

How to stop “iCloud-enabled apps” from showing me Open window on activation?

Several apps, which I will refer to as "iCloud-enabled apps", have an annoying tendency to show me an “Open” dialog box whenever they are launched or activated by clicking on the Dock icon when ...
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20 views

Finder doesn't display image thumbnails [duplicate]

My Mac doesn't generate thumbnails for some reason: I thought resetting Quick Look would solve this, so I ran qlmanage -r. However, it's been stuck here for an hour: What do ya propose?
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11 views

Preview.app Fillable PDF: Text drops down when editing form?

I don't know a better way to explain this, besides showing it. I used an example pdf form, but this happens on every fillable pdf form I could find. When editing the text boxes in Preview.app, the ...
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7answers
952 views

Mojave quicklook stuck at loading

Some days after installing Mac OS Mojave my quick look startet showing the spinning icon in the finder sidebar and when i press space on media files (.jpg, .png, .gif, .psd, .pdf, etc.). Here what i ...
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1answer
14 views

Enter digit instead of checkmark in box with Preview

I am using Preview to edit a PDF document. How do enter a digit instead of a tick or a cross (checkmark) in a box using the Preview app on macOS?
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1answer
36 views

Convert multi-page PDF to single PNG

I have a multi-page PDF. I want to make a PNG which is just all of these pages appended. Preview.app's Export... > PNG option saves it as a ... multi-page PNG? I didn't know those were possible, but ...
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1answer
67 views

Avoid two-character umlauts in PDFs

Introductory explanation An umlaut is a German vowel, represented in writing as a letter with two dots (diaeresis) over the basic vowel. Examples of umlauts are ä, ö, and ü. These three letters can ...
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0answers
8 views

Apple Mac Pro Internet screen and preview window show only background

Both the Internet and the Picture Preview only go to the background color. I have connectivity on the internet...The URL line shows but the screen below is what ever the background color is set at. ...
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2answers
49 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....
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1answer
23 views

Preview Text Annotation Tool

In a previous version of macOS the Preview app opened a box at the bottom of the screen and allowed me to click the A (type tool) and place the cursor where I wanted the text, then click to create a ...
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1answer
41 views

How to get the actual PDF icon rather than the stock one

I understand that with most apps etc. you can simply press CMD + I to get the Get Info and then from there you can simply select the icon and copy and paste it into another file so that the icons ...
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1answer
67 views

After installing High Sierra, preferences do not stick: PhotoShop images default to open in Preview

Since I "upgraded" to High Sierra, the text program (Tex-Edit Plus, v14.10.4) always reverts to the default preferences of opening two windows I do not want open: "Enable Quartz anti-aliased text at ...
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0answers
22 views

Share annotated PDF from iOS

When I annotate a PDF file, the annotations are correctly saved and can be seen using iOS "files" when saved there. But, when I upload the annotated PDF on the web, or by email, the annotations aren’...
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0answers
11 views

How to print from auto-select paper tray by PDF page size?

I have a tedious document production task that would be greatly simplified if I could use the dual-tray feature of the printer (a Canon MF414dw in this case.) Basically, I have an MS Word document ...
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1answer
128 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 ...
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1answer
21 views

How to find tagged PDFs

I have to organize a lot of PDFs and it's possible to add Tags to PDFs through the preview app (not the filesystem tags like red/blue/green). But how to find them? When I open the Spotlight and try to ...
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0answers
48 views

How can I get an image selection programmatically?

I need to log the bounding box of the selected area from an image to the command line. This is because I will have to do this across a number of images and then compare and reuse those bounding boxes....
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1answer
66 views

How to play a video at 200% zoom on Mac?

Is there a way to play a video at 200% zoom on Mac with builtin programs like Preview or Quicktime? Or do you need to install a third party video player like VLC?
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3answers
155 views

Preview Fails to render zoom properly for large png

I made a 32768 × 32768 pixel Mandelbrot png, because it's a fun thing to do. It renders fine in preview, until I attempt to zoom in (which is the whole point of making the image as big as I made it). ...
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0answers
30 views

Why is Preview blacking out pages in a PDF file?

Someone sent me a PDF. Here's what it looks like in Preview. I can see the pages in the thumbnails, but in the main window they are black. Any idea what's causing this and how to fix it. When the ...
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0answers
97 views

Automatically merge all windows in Preview when opening multiple PDFs simultaneously

Apple has finally introduced this Merge All Windows in Preview, which will create as many tabs as the files opened by the app in a single window. Is it possible to open more files automatically with ...
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0answers
60 views

Change stylistcally how Preview opens

I have an issue which I hope some advance settings tweaker can aid me with, since it has to do with how Preview windows open when reading images/pdf's. For a long time, I have always preferred ...
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1answer
23 views

Some PDFs do not snap to the window while using Preview

I have a ton of college textbooks in PDF form, and I use Preview hours on end, every day; so this little problem becomes quite annoying: Some of my PDF files "snap" to the size of the window when I ...
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1answer
148 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 ...
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2answers
76 views

Opening a pdf file from the command line

I have been using latexmk to make a pdf file in the following way: latexmk -pdf filename.tex; open filename.pdf This opens the pdf in Preview. However I want to open the pdf with a given zoom (...
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2answers
118 views

Why would Preview “want to use” my (unused) login Keychain just to execute hotkeys?

I've asked the related question in security SE: Why does not updating a MacOS keychain password cause applications to become troublesome? and the answer there explains that keychain is used by various ...
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0answers
628 views

Whatsapp Notification does not display contact name [duplicate]

The problem I’m experiencing is that contact names do not appear on whatsapp notifications (locked and unlocked). For example, if I get a message from Dad, whatsapp only displays the whatsapp logo and ...
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1answer
29 views

PDFs always open in Photoshop on Macbook Pro 2015 even when I change default program

Without my intervention, pdfs just open up in Photoshop. I've never told them to open in Photoshop, even once, but the computer decides to change the default program to Photoshop. I change the default ...
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0answers
51 views

JPG preview in Finder (OS 10.13.4) broken

After updating to High Sierra (10.13.4) the preview of jpg files in the finder are broken. It would appear that it is only the case with jpg's created by Adobe Illustrator (CC 2018). I restarted in '...
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1answer
75 views

PDFkit rendering issue

I generated a PDF by running pdfTeX on the following source file: \documentclass{article} \newcommand\embolden[1]{% \special{pdf:literal 2 Tr 8 w}% #1% \special{pdf:literal 0 Tr 0 w}% } ...
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1answer
33 views

Unexpected Colour differences (MacBook Pro, OSX 10.11.6)

I wrote a postscript file including a blue (0,0,255) RGB and a yellow (255,255,0) RGB shapes. When viewed (in Preview) and according to the apple DigitalColor meter set to "native colours" mode, the ...
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1answer
275 views

Preview freezes every time I restart it and open a file

Every time I open a pdf or image file using Preview when Preview was not already open, Preview will freeze up for a few seconds. If Preview was already open, i.e. I already had a pdf open and opened ...
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1answer
249 views

Preview fails to open pdf with “The file couldn't be opened because you don't have permissions to view it”. but I have these permissions

I've seen this earlier but never got time to bother looking closely into the problem. So when I open a pdf file I created (long time ago, though in 2014). I see this error message from Preview: But ...
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0answers
17 views

Can't enter text to empty lines in PDF files in Preview

When I fille out some PDF forms in Preview, I used to be able to enter text in the empty lines. Since some time, it has not been possible. When I click empty lines, an empty text box appears, but I ...
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0answers
9 views

Locate duplicate pages in multiple PDF documents (for removal)

Is there a way to automatically detect duplicate pages across multiple PDFs? e.g. we have 300 PDFs and there could be the same page in each of the PDFs, and we'd like to remove all but one of them. ...
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3answers
65 views

What is the best way to report a bug/feature request discussed here to Apple? [duplicate]

If a question asked on this forum does not get an answer because the feature requested does not exist (e.g. [1]), or it is agreed that there is a bug, ... what is the best way to report this to Apple? ...
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2answers
619 views

Quartz Filters not working on High Sierra—is it fixable?

I noticed tonight that I can't convert a document to black and white in Preview. When I open the PDF in Preview and select Export, I see a select input for Quartz Filters, and I'm able to choose any ...
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1answer
37 views

How can I insert an image(jpg/tiff) to an existing GIF in Preview?

I dragged an image(tried both jpg and tiff) to a GIF file and Preview just opens up two documents in one window, instead of adding the image to the first document (GIF). I have Preview 10.0.
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0answers
84 views

Does Preview.app's freehand tool allow one to select multiple shapes easily?

I am studying mathematics and I find the Preview.app's freehand tool extremely useful to help me understand the documents I am reading. As you can see in the picture below I end up having a LOT of ...
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1answer
131 views

How can I view PDF at two-pages and in the right-to-left order?

How can I view PDF at two-pages and in the right-to-left order? Acrobat can do this but Preview is more responsive.
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1answer
27 views

How to edit or add tag colors

In Preview.app for macOS 10.13.3, how do I remove a tag from the drop-down menu and add additional colour tag, other than the few shown? I made a tag which I want to remove from the drop-down menu. ...
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0answers
10 views

Preview, how can I manage highlights and notes? [duplicate]

After reading a pdf file, I made many highlights and notes with a different colour, and each colour represents a specific meaning, for example, BLUE means something that I need to look deeper. My ...
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0answers
43 views

Some Finder icons previewing as text when they shouldn't

I have this problem in my main user account which manifest itself that some file types in the Finder incorrectly preview as text. For example I have several .dmg file that looks like this: They also ...
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0answers
18 views

How can I change the height of text highlighting in Preview?

I'm highlighting a textbook with Preview, and for what seems like 90% of lines with mathematical symbols, Preview's character recognition gets messed up, and highlights too much. This seems like a ...
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0answers
31 views

What's this devil in my HIGHLIGHTS & NOTES?

I'm reading a e-book which can be easily found by Google, its name is "Discrete Mathematics and It's applications, 7th, Rosen". When I wanted to take a note using the HIGHLIGHTS & NOTES feature ...
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0answers
39 views

Is it possible to make the Finder render thumbnails for images that have a custom extension?

I have several image files that were originally .png, but due to my own needs I changed their name to some custom extension .xyz. Thankfully, I can still preview the images using the spacebar, so ...
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1answer
491 views

How to get my Mac (High Sierra) to recognize custom Quartz filters I created to reduce file size?

I want to create custom Quartz filters to reduce file sizes to custom specifications when exporting a PDF in Preview. I found a helpful article on how to do it with an old operating system. I found ...
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0answers
30 views

How can I add a semi-transparent color overlay to all pages of a PDF?

I have to read a lot of scanned text in PDF format for university and Adobe's accessibility features for replacing colors don't work for this type of PDF. I've searched for hours online and it seems ...