The Class Reunion Slideshow Disaster Nobody Plans For

Somewhere in a church hall basement in Ohio, a woman named Deborah is frantically clicking through a shared Google Drive folder at 6:47 PM while her 20-year class reunion starts in exactly thirteen minutes. She volunteered for the slideshow committee back in January, when it seemed like a fun thing to do. She is now staring at 47 photos that Windows Media Player refuses to open, a laptop borrowed from the audiovisual closet, and a growing sense of existential dread. Half the files end in .HEIC. The other half end in whatever format Android phones produce this week. Exactly zero of them are JPEGs. The projector hums cheerfully, displaying nothing but a blue screen.

How One File Format Became the Great Equalizer of Chaos

HEIC - the High Efficiency Image Container format - has been the default photo format on iPhones since iOS 11. Apple switched to it because HEIC files are roughly half the size of JPEGs at the same visual quality, which sounds like a gift until you try to share those photos with literally anyone who does not own an Apple device.

The cruel twist is that the photos look perfect on the phone. Gorgeous, even. Crystal clear, beautifully compressed, sitting in the camera roll like tiny trophies. The moment you email one to a Windows user, upload it to a platform that predates 2018, or hand a USB stick to someone running the church hall audiovisual laptop from 2014, the format reveals its villain origin story.

Deborah's problem is not unique. Across thousands of committee meetings, school projects, workplace slideshows, and family group chats, this exact crisis plays out daily. Someone collects photos from a crowd of contributors, discovers a significant portion are HEIC files, and then begins an unplanned archaeology expedition into the settings menus of other people's iPhones.

The "Just Change Your Settings" Advice That Helps Nobody

The standard response from tech-savvy bystanders is usually "just tell everyone to switch their camera settings to Most Compatible mode." This is technically correct and practically useless advice for three reasons.

• The photos you already collected are already HEIC. Settings changes are future-tense solutions to a present-tense emergency.
• Getting 47 people to navigate to Settings, then Camera, then Formats, then tap "Most Compatible" requires a level of group coordination not seen since the moon landing.
• At least four people in any reunion committee group chat will respond "I don't see that option" because they are somehow on iOS 9 and running a phone that technically belongs in a museum.

The actual fix is converting the files you already have, quickly, without installing software on a borrowed laptop, and without sending anyone's precious nostalgia photos to a server in an unknown location. This is where COMBb2's HEIC Converter becomes the most useful tool you've never thought to bookmark before a crisis.

The Part Where the Browser Does the Heavy Lifting

The converter runs entirely in the browser. You drag the HEIC files in, choose JPEG or PNG as your output, and get back files that every device, every projector, every ancient Windows Media Player slideshow creator from 2003 will happily open without complaint.

The "entirely in the browser" part matters more than it might seem. When you are dealing with photos from a reunion - candid shots from people's childhoods, family moments, graduation days, the photo where someone's ex-spouse is cropped out with what can only be called aggressive enthusiasm - those images carry some emotional weight. You probably do not want them uploaded to a cloud service run by a company you have never heard of, processed on a server somewhere, and retained in some ambiguous terms-of-service limbo. The photos stay on the device. The conversion happens locally. Nothing leaves.

For Deborah in Ohio, this meant opening a browser tab, converting the problematic half of her shared drive in about four minutes, and starting the slideshow with thirty seconds to spare. The first photo to appear on the projector was a badly lit 2004 prom picture featuring enormous hair and a shade of blue eyeshadow that should have been illegal. The room erupted. The night was saved.

Other Situations Where This Exact Problem Appears

The reunion slideshow is just one version of this story. The same HEIC compatibility wall shows up constantly in situations where groups of people contribute photos from different devices and someone downstream has to make them all work together.

• Sports team end-of-season highlight reels, where parents send their best action shots and half arrive in a format the coach's editing software has never encountered.
• Office farewell slideshows, assembled at speed when someone announces their last day with three days' notice, collecting photos from a department that owns a genuinely impressive variety of phone brands and operating system versions.
• School project photo essays, where students submit images and the teacher's laptop, running software approved by the IT department sometime during the previous decade, cannot open a single one.
• Real estate agents assembling listing galleries from photos taken on multiple phones across a team, discovering that the gorgeous kitchen shot from the iPhone 15 Pro is unreadable to the listing platform.

In every one of these cases, the solution is the same: convert the files before they need to perform publicly. The HEIC Converter handles the batch without fuss, and once files are in JPEG or PNG format, they become universally cooperative in a way that HEIC files simply refuse to be.

A Word About PNG Versus JPEG for Converted Photos

When the converter asks you to choose your output format, the right answer depends on what you plan to do with the photos afterward.

JPEG is the right call for most situations: slideshows, social media uploads, email attachments, website galleries, printing at the drugstore photo kiosk. It produces smaller files and is universally accepted. If you need to compress the files further after conversion for a website or email attachment, JPEG handles that gracefully.

PNG is worth choosing when the photo contains sharp text or graphics, when you need to preserve every pixel without any compression artifacts, or when you plan to do further editing and want the highest-quality working file. PNG files are noticeably larger, which matters if you are emailing a batch of forty-seven reunion photos to a committee that checks email on a 2012 MacBook Air with 128GB of storage mostly occupied by music.

For the classic "I need this to work on the projector in eleven minutes" emergency, choose JPEG and move on.

The Preventive Move Nobody Makes Until After the Crisis

There is a version of this story where Deborah sends out the photo submission guidelines in January and includes a line about file format. There is a version where the committee runs a quick compatibility check a week before the event. There is a version where everyone's photos arrive as JPEGs and the slideshow loads without incident.

None of those versions make for a good story. The version where someone is sweating in a church basement at 6:47 PM, converting files in a browser tab while the caterer sets out the punch bowl, is the version that actually happens.

Bookmark the converter before you need it. It is significantly less stressful to use when you are not also watching the minute hand move.

Conclusion

HEIC is a genuinely good format for storing photos on an iPhone. It saves space, preserves quality, and works beautifully inside the Apple ecosystem. Outside that ecosystem, it behaves like a houseguest who refuses to speak the local language and is baffled that nobody else finds this reasonable. The fix is a quick conversion to JPEG or PNG using COMBb2's HEIC Converter, which runs in the browser, processes photos locally without uploading anything, and turns an incompatible batch of memories into files that will open on absolutely anything, including the audiovisual laptop in the church hall basement that is running Windows 7 and has not been updated since the Obama administration. Deborah would confirm this. She rates the experience five stars, though she says she is never volunteering for a committee again.