Guides / OwnPDF
How to compress a PDF to 100 KB on your phone
Open the PDF in OwnPDF, choose Compress, and pick a target size such as 100 KB. OwnPDF shrinks the file on your phone until it fits the limit, then saves a new copy so your original stays untouched.
Why portals reject your PDF
Exam, job, passport and government portals cap uploads, often at 100 KB, 200 KB, 500 KB or 1 MB. A phone scan of a few pages is usually far bigger, so the upload fails.
Steps
- Install OwnPDF and open your PDF, or share it to OwnPDF from WhatsApp, Gmail, Drive or your file manager.
- Choose Compress.
- Pick a target: 100 KB, 200 KB, 500 KB or 1 MB, or set your own exact limit.
- Save. OwnPDF writes a new file and never saves one bigger than the original.
Tips if the file still won't fit
- Scan in B&W or Grayscale: text pages get much smaller than colour.
- Remove pages the portal doesn't need with Organize pages.
- Split one big PDF into parts if the portal accepts several uploads.
Is it private?
Yes. OwnPDF works offline and your files never leave your phone. There's no account and no watermark.
Questions
Can I compress a PDF to 100 KB without uploading it?
Yes. OwnPDF compresses on your phone, offline, so the file is never uploaded anywhere.
Will compressing make my PDF unreadable?
OwnPDF finds the best quality that fits your limit. Text scans in black and white stay sharp even at small sizes.