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Apple-sharpener: square macOS windows

https://github.com/aspauldingcode/apple-sharpener
1•nateb2022•34s ago•0 comments

While YouTube Is Down

https://meme-app-blush.vercel.app/en
1•sleepy_duck•54s ago•1 comments

DEF Con 33 – Post Quantum Panic [video]

https://www.youtube.com/watch?v=OkVYJx1iLNs
2•nodesocket•2m ago•0 comments

Quantitative Easing the Roman Way (2010)

http://historybooksreview.co.uk/quantitative-easing-the-roman-way/
1•rzk•3m ago•0 comments

A beginner's guide to sociopolitical collapse (2024)

https://www.elidourado.com/p/collapse
1•rzk•3m ago•0 comments

YouTube Is Down

https://9to5google.com/2025/10/15/youtube-down-outage-october-2025/
9•blakemartz•10m ago•2 comments

Show HN: I built a retro Tron inspired lightcycle game

https://testflight.apple.com/join/xwwP4fa6
1•GabrielMMMM•13m ago•0 comments

YouTube outage hits users as error messages block video playback

https://www.nzherald.co.nz/technology/youtube-outage-hits-users-as-error-messages-block-video-pla...
8•sbmthakur•15m ago•1 comments

More Young Republican chat members out of jobs as condemnation intensifies

https://www.politico.com/news/2025/10/14/its-revolting-more-young-republican-chat-members-out-of-...
1•heavyset_go•16m ago•0 comments

Show HN: An AI agent for high-security art storage brokerage

https://www.stockage-courtage.fr/stockage-oeuvres-art
1•marctossip•17m ago•0 comments

I, Sharpie

https://www.commonplace.org/p/chris-griswold-i-sharpie
1•delichon•19m ago•0 comments

Apple is now offering a $2M bounty for a zero-click exploit

https://www.schneier.com/blog/archives/2025/10/apples-bug-bounty-program.html
2•jtbayly•22m ago•1 comments

Installing and Using Linux (AsteroidOS) on a TicWatch Pro 2020

https://neilzone.co.uk/2025/10/installing-and-using-linux-asteroidos-on-a-ticwatch-pro-2020/
1•edward•23m ago•0 comments

Show HN: ProjectDiscoverys Subfinder > Android App in <30M – Claude Code

https://github.com/abzi/subfinder-android
1•alpenbazi•25m ago•1 comments

What the Mercantilists Got Right

https://www.nber.org/papers/w34353
1•bikenaga•32m ago•0 comments

Writing an LLM from scratch, part 22 – training our LLM

https://www.gilesthomas.com/2025/10/llm-from-scratch-22-finally-training-our-llm
19•gpjt•34m ago•0 comments

Hallucination

https://en.wikipedia.org/wiki/Hallucination
1•downboots•35m ago•0 comments

Is your beef linked to Amazon deforestation? A report highlights loopholes

https://www.aljazeera.com/news/2025/10/15/is-your-beef-linked-to-amazon-deforestation-a-report-hi...
1•Qem•37m ago•1 comments

Antigen in bird flu A(H5) virus confers subtype-wide immunity

https://pubmed.ncbi.nlm.nih.gov/39553979/
4•JumpCrisscross•38m ago•1 comments

YouTube seems to be down

https://www.youtube.com/
101•alexpadula•39m ago•46 comments

Iced: Cross-platform GUI library for Rust focused on simplicity and type-safety

https://iced.rs/
2•klaussilveira•39m ago•0 comments

YouTube Is Down

35•HughParry•42m ago•16 comments

YouTube Is Down

https://downdetector.com/status/youtube/
18•lieuwex•44m ago•1 comments

Army general says he's using AI to improve "decision-making"

https://arstechnica.com/ai/2025/10/army-general-says-hes-using-ai-to-improve-decision-making/
2•FrustratedMonky•45m ago•2 comments

Faulty engineering led to deadly Titan sub implosion, US investigators rule

https://www.theguardian.com/world/2025/oct/15/titan-sub-disaster-ntsb-report
8•devonnull•46m ago•0 comments

Creating Catchy Cover Letters

https://keenwrite.com/blog/2025/10/15/creating-catchy-cover-letters/
3•thangalin•49m ago•0 comments

IRS Open Sources its Fact Graph

https://github.com/IRS-Public/fact-graph
38•ronbenton•51m ago•4 comments

Sunscreen for the Planet

https://worksinprogress.co/issue/sunscreen-for-the-planet/
4•jethronethro•53m ago•0 comments

Show HN: Trade simulation engine with realistic bid/ask fills

https://parsepect.com/auth/login?next=%2F
1•vain•54m ago•1 comments

Zathura is a highly customizable and functional document viewer

https://pwmt.org/projects/zathura/
1•doener•55m ago•0 comments
Open in hackernews

Acrobat is intrusive, slow and non-customizable

https://www.vincentuden.xyz/blog/pdf-reader
131•vincent-uden•2h ago

Comments

Scene_Cast2•1h ago
Running X11 on WSL is pretty easy and pain-free these days. The author could hypothetically run Zathura through that setup in a pinch.

I'm all for a good Acrobat alternative though.

clickety_clack•1h ago
Acrobat is the worst. I had to download it to fill in tax forms and suddenly every pdf download triggers a lumbering beast to wake itself up and wrench control of my desktop. It has the feel of scammy shareware from back in the day.
gdulli•1h ago
Firefox has never failed me for this. It's great not needing a separate program at all.
itopaloglu83•1h ago
Acrobat also installs this weird service that tries to upload all the pdf files you open, regardless of what you do, you cannot shut it down or disable.

I was in charge of the electronic document management system of a university, and kept having issues with deleting pdf files after opening them. The error said the files were still in use, and exiting Acrobat didn't solve the issue either. Apparently, the background service keeps the file open to upload it, and I had to forcefully close open files just to delete pdf files.

Acrobat is abusing a standard, portable document format, and trying to become synonymous with it, despite being very hostile against users.

dylan604•1h ago
> Acrobat is abusing a standard, portable document format, and trying to become synonymous with it, despite being very hostile against users

What? They're just extending the portability by uploading the files to the cloud so you can view them from anywhere! /s

I'm assuming/hoping that's all it is in whatever this uploading is. Did you find out why it was uploading files, and more importantly, where?

elorant•1h ago
I hate pretty much everything from Adobe. I treat all their software as malware since it's counter intuitive and consumes too much resources. Thank God i'm not an artist/design who has to work with their products daily.
Gualdrapo•1h ago
And even if you were you could manage to earn a living without using Adobe stuff. Ask David Revoy, for example.

https://www.davidrevoy.com/static2/about-me

mananaysiempre•1h ago
No mention of Sumatra PDF[1]? Windows (only), open source, uses MuPDF.

[1] https://www.sumatrapdfreader.org/

zamadatix•1h ago
I had to ctrl+f the blogpost after reading because I couldn't believe they ended it without even a mention of SumatraPDF!

What a great PDF reader. kjksf, thank you!

globalnode•1h ago
ok thank you so much... finally an open source pdf reader thats not acrobat that works (hopefully, still testing). on the issue of pdf forms, my gosh they just should not exist, thats what web pages are for.
Muromec•58m ago
pdf forms are pretty convenient when you need to fill it in, print and send to government by snail main or show in person or sent digitally. Happens in some places more often than in others.
techjamie•44m ago
They're also amazing for digital TTRPG sheets. You can send around the PDF form, and everyone can fill out and store their own sheet, print it, send it back to the GM, whatever the group needs.
foofoo55•17m ago
Our favorite is still PDF-XChange [1] which has been our daily driver for years. Only dislike is the difficulty in opening a document in a separate application window. It's either everything in one window or everything in its own window.

[1] https://www.pdf-xchange.com/

jesuslop•13m ago
Ohh, daily driver here. You can configure external apps to open the pdf (in a given page) and choose your hotkey for it, and with some effort, that supercharges the reading. With some scripting and using the grand pymupdf library one can customize it as deeply as one wishes.
porphyra•1h ago
In my experience, the best tool to edit PDFs is Master PDF Editor. The older version 4 is even freely available in the arch user repository: https://aur.archlinux.org/packages/masterpdfeditor-free
karsa_orlong•1h ago
I recommend sioyek if you need some highlighting functionality which is absent in zathura. Moreover, Xournal++ is also pretty good for editing.

What I really want is a PDF editor, with just highlighting functionality, that works like the visual mode.

adamnemecek•1h ago
What I hate about Preview on macOS is that all opened PDFs are kept in memory as opposed to freeing up the memory when the PDF is not active.

Look I know that I probably should not have 200 PDFs open, but Preview should not be consuming 40GB of memory.

crazygringo•1h ago
That's... not how programs usually work. You open something, it's in memory.

Yeah, you shouldn't have 200 PDFs open.

On the other hand, the good news is your Mac still runs fine, consuming 40GB of "memory" even if you've only got 8GB. Since it's just putting it all out to swap on a fast SSD. So why even complain?

seemaze•58m ago
As someone who routinely switches between multi-gigabyte PDF files, I appreciate that they all stay loaded in memory. Ain't nobody got time to re-render and re-index those files every time I switch documents..
asdff•1h ago
How about the fact they charge $25/mo for acrobat
annoyingnoob•1h ago
Adobe is trash, bloated, over-priced software that is mostly DRM. Paying customer? Adobe hates you, but not your money.
munk-a•1h ago
Like a lot of enterprise software companies - their customers aren't their end users so a lot of their incentives aren't actually aligned to produce a good UX.
gdevenyi•1h ago
No mention of Okular from KDE.
lurk2•1h ago
I installed it a while ago based on recommendations I saw here. It works far better than Acrobat ever did. Deleting all of the Adobe files off of my computer felt great.
jwrallie•24m ago
I vote for it too. My favorite features are adding comments to highlights when reviewing a PDF and the tool to copy tables to clipboard that allows you to help it with the segmentation. I even got some of my colleagues that are on Windows into it, and I don't even use KDE Plasma as my DE.
nipperkinfeet•1h ago
We all do. There are many amazing alternatives nowadays. No need for any Adobe products.
superkuh•1h ago
PDF is no longer a single format. You have to specify what type of PDF. Many will not open in anything but Acrobat.

For example the Wisconsin state dept. of natural resources converted nearly all of their permit/form PDFs to "Dynamic XFA (XML Form Architecture) PDF". Which is basically a PDF without content that pulls down all it's content from the web. It even still, ostensibly, supports Flash (swf) animations. But when I try to open those permit form PDFs in any other viewer but Acrobat I get,

>"Please wait... If this message is not eventually replaced by the proper contents of the document, your PDF viewer may not be able to display this type of document. You can upgrade to the latest version of Adobe Reader for Windows®, Mac, or Linux® by visiting http://www.adobe.com/go/reader_download. For more assistance with Adobe Reader visit http://www.adobe.com/go/acrreader. Windows is either a registered trademark or a trademark of Microsoft Corporation in the United States and/or other countries. Mac is a trademark of Apple Inc., registered in the United States and other countries. Linux is the registered trademark of Linus Torvalds in the U.S. and other countries." - https://dnr.wi.gov/files/PDF/forms/9400/9400-280.pdf

PDF is supposed to be the format that looks the same everywhere all the time. But these "PDF" completely and miserably fail at that.

glkindlmann•1h ago
Thank you for giving the specific name ("Dynamic XFA (XML Form Architecture)") to the kind of PDF that generates the "Please wait" message. I have seen this and never understood how it arises. Chuck Geschke spins in his grave ...
GuB-42•35m ago
Indeed, the "Chuck Geschke spinning in his grave" animation wouldn't have been possible without Flash support!
skydhash•1h ago
That would be one of the reasons I’d have a dedicated computer that I power on for these kinds of things. Better than suffer bad software all the times.
kace91•1h ago
>Which is basically a PDF without content that pulls down all its content from the web.

…why?

Isn’t that literally a website at this point? What benefit can you possibly have over a link ?

Spooky23•58m ago
Adobe gets to charge somebody a big bag of money.
LeoPanthera•1h ago
Apple Preview does mostly everything you could want to do with a PDF. Supports unlocking encrypted PDFs, form filling, and even page rotation. (A feature which Adobe charges for.)
OGEnthusiast•1h ago
Preview.app is actually one of the few first-party Apple apps that I really miss when using a non-macOS computer.
benjaminclauss•1h ago
and now on iPad... finally
dylan604•1h ago
that plus the quick look from smashing the space bar in Finder. selecting a file and hitting space is muscle memory for me, and the first time I do it on a non-macOS computer it just feels broken to me.
BolexNOLA•1h ago
Preview as someone who work in media production is borderline a must-have at this point. Fastest spot checks one could hope for.
kennyadam•54m ago
Microsoft PowerToys has this functionality, called Peek: https://learn.microsoft.com/en-us/windows/powertoys/peek
dylan604•39m ago
Is that something that comes built-in or installed?
wlesieutre•34m ago
Installed, but includes a lot of other handy features and is highly recommended
dylan604•1m ago
you see my point though, right?
donatj•53m ago
I came here to say how spoiled we are as Mac users. Preview is genuinely the best PDF reader. Full stop.

Unchallenged, and for something like 20 plus years running.

hollerith•51m ago
Interesting. I personally never liked Preview. No way to configure it to open maximized, so every time I open a Preview window, I have to maximize it manually.
kstrauser•14m ago
But... why?

Anyway, you're on a Mac. Fix it yourself. Run the Shortcuts app and create a shortcut called something like "Maximize Preview". Set it to run an AppleScript:

  on run {input, parameters}
    tell application "Preview" to activate
    tell application "System Events" to set value of attribute "AXFullScreen" of front window of (first process whose frontmost is true) to true
    return input
  end run
(Download that from https://www.icloud.com/shortcuts/96b7c0fef90a408ba3c3bcaedfb... if you trust me — which you probably shouldn't — and you don't want to type it in.)

Now in Shortcuts create an automation that runs when Preview is opened, and select that shortcut you just created as its action. You may have to go into System Settings > Privacy & Security > Accessibility and let Shortcuts and siriactionsd access to control your desktop.

Basically, you're doing something very uncommon for a Mac desktop, so it's not going to help you with that by default. It doesn't mean you're powerless to change it, though!

bee_rider•24m ago
I’m convinced it is impossible to do better than Evince, I’ve never found any deficiency or lacking feature in the program.

But, if you think Preview is similarly perfect—maybe we should just come to the conclusion that PDF readers are in a pretty good state.

Which makes Acrobat so confusing.

dunham•7m ago
Yeah, I've been very happy with it over the years. But my one minor nit-pick is that it uses a _lot_ of memory. I presume it is pre-rendering stuff for speed.

On iPhone and iPad I've been using Notability.

russellbeattie•5m ago
[delayed]
treetalker•1h ago
I use the free version of PDF Expert on all my Apple devices, and it's pretty great. (I use it for heavy-duty highlighting and annotation, document creation/merging, creation of tables of contents, as well as handling large pdfs — appellate case records, briefs, etc.) I'm especially fond of how it works on my enormous iPad Pro with the Apple Pencil: almost as good as, and in many ways better than, working with real paper and pencil.
neilv•1h ago
> On linux there is (at least) one non-bad PDF reader. Zathura is amazing with the MuPDF backend.

Obviously, Linux has the showstopper of being a non-abusive, non-proprietary software platform.

Who needs that nonsense, when the problem we're trying to solve is abusive, proprietary software.

bix6•1h ago
What are people using as a free (edit: or lifetime license) PDF editor for business use / non-technical people? Whenever we try anything else we inevitably run into something we need acrobat for.
observationist•1h ago
I have grok produce a precise transcription of the text, then have chatgpt produce an editable word document, including forms, following the text that grok picked up (it's a lot better at OCR, for some reason)

And then if I need to produce another pdf, I export it from Word.

PDFs are silly. It's tech superstition, kinda like the belief that faxes are secure.

bix6•1h ago
We have to manipulate 100 page PDFs, that sounds like a nightmare.

I also can’t run sensitive docs through LLMs. This stuff has to stay local.

cyanydeez•1h ago
Acrobat 9.0
bix6•1h ago
I can’t legally buy that anymore and I’d need to downgrade OS to use it anyways?
prmoustache•1h ago
Not sure why would anyone edit a pdf. To me this is a format you export to, not a draft/working doc format.
AlotOfReading•51m ago
As much as I agree, I've lost track of how often someone's given me a PDF form to fill out. While driving down to the print store during business hours for a scanner is possible, it's a lot easier to make a sacrifice to the dark gods of format abuse instead.
ok123456•49m ago
Reorder pages. Redact. Need to make a minor change, and don't have the original. Digitally sign a document. Comment on a document. Join several documents together.

There are a bunch of reasons.

crazygringo•1h ago
One of my favorite things about macOS is that it comes with Preview. It's clean and lightning-fast for viewing and annotating PDFs. PDF support feels like it's just part of the OS because, well, it is.

I guess I hate Acrobat too, but I virtually never have to use it (except for tax forms, ugh).

stefanos82•1h ago
As a GNU / Linux Debian user, I personally use many different PDF readers for eccentric reasons lol!

My preference by far is qpdfview, but I also use Okular (KDE), Evince, its fork for MATE desktop environment, Atril, and of course xpdf!

diegof79•1h ago
Preview is probably the best thing that has happened since I switched to Mac almost two decades ago.
seemaze•1h ago
Hardest working app on macOS
quickthrowman•1h ago
My company provides me with the top tier license for Bluebeam Revu, an amazing PDF editor geared towards the construction industry. It handles everything you can think of flawlessly, it can extract PDF tables into Excel spreadsheets, markups of all kinds, measuring, counting, resizing; adding, removing extracting, and collating sheets, pasting in photos from the clipboard, and so much more. It’s the best piece of software I use at work, and I’m thankful for it every day.

The construction industry is very strange and mostly runs on emailed PDFs (plans, proposals, submittals, etc) and Excel spreadsheets. Sometimes these PDFs are organized in Procore.

tombert•1h ago
I haven't really ever had issues with Evince. I don't know that my requirements have that advanced, but it does auto-updates when I write Typst or LaTeX, which is the thing I primarily care about.
juliangmp•1h ago
Personally I'm still impressed by Adobe's work there. They designed the PDF format but still manage to have the worst PDF reader on the entire market.
1121redblackgo•32m ago
It aint easy being cheesy. It’s truly impressive how they’ve been able to lock in and lock down the entire corporate world for 2 decades while being that mediocre.

Also equally baffling how mediocre all the alternatives are.

fragmede•28m ago
They created the format, which means they don't need to make a good reader. Simple inertia guarantees them a good amount of revenue selling to corporations, and those contracts are usually quite juicy, especially the ones where the person signing the contract isn't forced to use said product. (cough Microsoft Teams)

Improving the product would be a significant amount of work, cost a lot of money, and why do that when you can just sit back and rack in the cash?

sureglymop•12m ago
The fact that they called it "portable" document format and now I regularly get PDFs that display "Please open this file in Acrobat" if opened in any other viewer... Great stuff.
foolswisdom•8m ago
Wait, this actually happens?
dwd•1h ago
Acrobat Reader lets you do a lot of potentially bad things with ActiveScript in a PDF once the user allows it.

I worked on a PDF form that was distributed widely within a Gov department. It would be routinely saved locally and emailed half completed up the managerial chain for sign-off on the request.

It had a lot of dynamic fields so you had to allow it to run macros.

The first thing it did was check the version of the just opened form and replace it with the latest PDF from the department's server.

It also had save/resume functionality which would only work in Acrobat Reader at the time.

Edit: Shout out to Inkscape which I find is a handy replacement for Illustrator and doing minor fixes to PDFs.

prmoustache•59m ago
I didn't even knew acrobat was still a thing. I thought it died at the same time as flash. Who is still using it and what would be the use case?
mapierce2•59m ago
I'm pretty sure zathura works with wayland just fine.
ChuckMcM•57m ago
Pretty neat, I always appreciate it when someone can give the reasoning behind their programming choices.

Its a good start but some issues (on Win10 using the binary from releases) that became pretty apparent right off the bat. I took an instructables page[1], that on Windows I had used 'print to PDF' to print it from Firefox into one long PDF. Using 'j' to scroll down, stops at the end of the page but keeps pretending its going down so you end up down a bunch of virtual lines that don't exist, 'J' will move you to the next page but not to the top of the next page? Two copies of the same file (but from different places, one from the NAS and one from the local disk) open, then neither one of them rendered. The status line suggested they were on different pages but there was nothing on the screen.

That said, it started quickly and time to first page render was fast (with a single file open). I tried it on a more conventional file (datasheet) and again with 'j' or 'k' it moves the page down or up and leave blank space where the page was, neither the next or previous pages are anywhere to be seen until you type 'J' or 'K'. That's a bit unintuitive.

[1] https://www.instructables.com/HackerBox-0110-Synth/

octagons•56m ago
In my experience, anyone running Wayland is very much used to some number of applications that depend on Xwayland. Does Zathura + MuPDF not work with it?

Either way, if you want to show off a project, just do so…

zaruvi•32m ago
Yeah, it works perfectly fine for me on hyprland.
Andrex•48m ago
One of the first things I do on family computers is set PDFs to open in Chrome. (If I have time and the authority I also remove Acrobat.) It's saved me a lot of hassle.
roadbuster•47m ago
Chrome uses the open source PDFium engine to render PDFs. That should let anyone view and use 99% of PDFs

https://pdfium.googlesource.com/pdfium

eulgro•33m ago
I still use Acrobat for two things:

- Viewing Altium generated schematics, which have some macros that only work in Acrobat. - Printing stuff. Acrobat print dialog is pretty good.

nice_byte•32m ago
Just use sumatraPDF. Works on wine.
mbmjertan•30m ago
Acrobat Reader is one of the more poorly engineered programs I’ve used. And it recently asked me to sign in an account and give Adobe money to open a PDF??

Unfortunately I need to sign PDFs often (using an image of my physical signature or a digital certificate), and I haven’t used that didn’t suck more than Adobe in this. I haven’t tried Okular for this and Evince seemingly didn’t support this - but Preview (although an extremely great document reader in most regards) didn’t let me select an image of my signature, but asked me to either sign on the trackpad with my finger (how do you make that not look like you had nerve damage?) or show a picture of my signature to the webcam of my Mac so it would do extraction on it (which didn’t work at all after 20 minutes of attempting, but also why can’t I just select a photo??). Finally I figured out pdfjs in Firefox recently shipped image-based signing (still waiting on certs)

Of course, I could have edited the PDF in a better editor (GIMP even!), but.. why is such seemingly simple and common PDF work a horror show?

usaphp•23m ago
You can use preview on a Mac to sign them
rufugee•20m ago
As much as I despise the macOS experience, this small feature was a bright spot. So easy.
qwertytyyuu•29m ago
Edge is a decent pdf viewer, somehow adobe managed to make soemthing worse than edge
Perz1val•14m ago
Does the new edge still use the same PDF viewer as the non-chromium edge?
snvzz•27m ago
Okular, KDE's PDF viewer, works on Windows/MacOS as well, and is most tolerable.
funktour•13m ago
There are a surprising number of Preview defenders here. You guys must have never had to open a 500+ page document, because for me, that's an all-but guaranteed way to make Preview crash. Preview is only best because the major alternatives (Acrobat) suck more.

PDF readers I actually like: Zathura (obviously), sioyek (if you like customizability and Vim-like bindings, this is a good one!), and Skim.

Everything else tries to do too much (read: be an Acrobat substitute).

crooked-v•9m ago
For me the default alternative to Preview is PDF Expert. It's very zippy and it has the quality of life stuff that other readers leave out, like editing bookmarks.
dunham•3m ago
I haven't had it crash. Typically my documents are under a 300 pages (either academic books or papers), but occasionally I use the PDF reference, which is 1300 pages.
rayiner•12m ago
What’s crazy about how janky and slow Acrobat is that pdf-tools in Emacs is much faster, including at live resizing a PDF along with an emacs frame, even though Emacs has no PDF support. (PDF tools calls out to an external process to render individual pages to images, which emacs is capable of displaying.)
nye2k•9m ago
I want to add in, as I used a ton of JS back when for a GUI that would build prepress ready PDFs and ship em direct to giant xerox printers for a company called Copy General - the early days of on demand printing.

The pdf format was awesome broad shift for the early digital printers and has been a nice standard for a long time.

Adobe uses Acrobat as leverage in this game. Reader is the public’s only peephole and they have famously kept the features lean.