Support
Help with DocSlim
I made DocSlim because I got tired of form portals saying "photo must be under 50 KB" and then rejecting everything I uploaded. If something isn't working for you, I want to know.
Common questions
I set 50 KB but the portal still says the file is too big.
Some portals count 1 KB as 1000 bytes and some as 1024. DocSlim always aims for the smaller number, so the file should pass on both. If it still fails, the portal might also want exact pixel dimensions. Turn on exact dimensions, or pick a preset, and try again.
The file came out much smaller than the size I typed.
That's normal for small images like signatures. A 140×60 signature is only a few KB even at full quality, so there's nothing left to compress. It's still under the limit, which is what matters.
The portal says the file is too small.
A few forms want something like "between 20 KB and 50 KB". Type the upper number (50) as the target. DocSlim gets as close to it as it can, which almost always puts you inside the range.
I forgot a page. Do I have to scan everything again?
No. Open the Files tab, tap the PDF, then tap "Add pages". You can scan more, pick photos, or add another PDF. Tap Save and it updates the same file.
Can I change a file's name?
Yes. Type a name before saving, or in the Files tab swipe left on a file and tap Rename. DocSlim swaps spaces for underscores and drops symbols, because a lot of upload portals don't accept them.
Where are my files kept?
Only on your device, inside the app. Nothing is uploaded anywhere. If you delete the app, the files go with it, so share or save anything important to the Files app or iCloud Drive first.
Why can't I select text in a compressed PDF?
To shrink a PDF, DocSlim saves each page as an image. Portals only need to see the page, so this doesn't matter for uploads, but the text in the compressed copy can't be selected or searched.
What's free and what's Pro?
Scanning, turning photos into a PDF, adding pages later and sharing are free, with no time limit. You can also try compressing and resizing and see the result for free. Pro unlocks saving those results, plus the PDF compress and merge tools.
I paid but the app still asks me to upgrade.
Go to Settings in the app and tap "Restore purchases". Make sure you're signed in with the same Apple ID you bought it with.
How do I cancel the yearly plan?
Apple handles subscriptions, so I can't cancel it for you. Open your device's Settings, tap your name, then Subscriptions, then DocSlim. Cancel at least a day before it renews. You keep Pro until the end of the year you paid for.
Can I get a refund?
Refunds go through Apple. Request one at reportaproblem.apple.com. If something in the app is broken, please email me too so I can fix it.