How to Reduce PDF Size to 100 KB or 200 KB for Government and Exam Forms

Online application forms for government jobs, entrance exams, scholarships and admissions often reject documents that are larger than a set limit, such as 100 KB or 200 KB. A phone scan of a certificate can easily be 2 to 5 MB, so it has to be compressed first.

Step 1: Check the exact limit

Read the official notification or the upload page. It usually states the format (PDF or JPG), the maximum size and sometimes a minimum size. Limits differ between forms, and even between documents in the same form.

Step 2: Compress the PDF to the size you need

1. Open PDFAdore Compress PDF and choose “Fit to a size”, or use one of the ready pages: 50 KB, 100 KB, 200 KB, 500 KB or 1 MB.
2. Select your PDF and click Compress PDF.
3. PDFAdore tries gentle compression first and only goes stronger if it must, so you get the best quality that still fits.
4. Download the file and check it opens and is readable before uploading.

If the PDF still will not fit

• Remove pages the form does not need with Remove Pages.
• Split a long document into parts with Split PDF and upload each part, if the form allows several files.
• Rescan at a lower resolution: 150 to 200 DPI in black and white is enough for most certificates.
• If you only have photos, use Scan to PDF with the “Document” look, which makes pages much smaller than colour photos.

Tips for documents that get rejected

• Make sure the file name has no special characters; some portals reject names with spaces or brackets.
• Do not upload password-protected PDFs. Remove the password first with Unlock PDF.
• If a minimum size is mentioned (for example at least 20 KB), avoid compressing far below it.

Frequently asked questions