Compress PDF to 100 KB for GST Registration
Bring your proof documents under the tight size limits that the GST registration portal sets for uploads.
Files are optimized losslessly when possible. To guarantee an exact size, larger files are converted to images, which can soften text and remove the selectable text layer.
Compressing PDFs for GST registration
GST registration on the official portal asks for several supporting documents, and the upload fields are strict about size, often only a few hundred kilobytes and sometimes as low as 100 KB for a single PDF. The exact limit depends on the document type, so check the size and format shown next to each upload field before you submit.
These documents include business and bank details. Because KiloPDF works entirely in the browser, your proofs are compressed locally and never uploaded to a third-party service.
Choose your file, confirm the 100 KB target, and download. Any document that already meets the limit is returned untouched so it stays as clear as possible.
Need the general tool? Compress PDF to 100 KB for any purpose.
How it works
- Step 1
Drop in your PDF. It stays on your device.
- Step 2
Pick a target size (or type a custom KB value).
- Step 3
Download a PDF compressed to your target in seconds.
Why compress a PDF to 100 KB?
- Proof of business address and ownership documents
- Bank statement and cancelled cheque scans
- Identity and authorization documents for GST
Compress to another size
Frequently asked questions
Is 100 KB the right size for GST registration?
100 KB is a commonly requested target, but limits vary and change over time. Check the exact requirement on the relevant portal or provider before you upload or send.
Are my files uploaded to a server?
No. Compression runs entirely in your browser using WebAssembly. Your PDF never leaves your device, which makes this safe for KYC, banking, and government documents.
How do you hit exactly 100 KB?
We re-encode each page as an image and search across quality and resolution settings until the rebuilt PDF lands at or just under 100 KB, keeping the best quality that still fits.
Is it really free with no watermark?
Yes. No sign-in, no per-hour task caps, no watermark, and no file-count limits, unlike most incumbents.
Will the text stay selectable?
When the file already fits or can be optimized losslessly, text stays sharp and selectable. To guarantee a smaller exact size we rasterize the pages, which is exactly what portal uploads need. If you need selectable text, keep your original.