Reduce PDF Size for Online Forms

"File size should not exceed 200 KB" — this line appears in almost every online application. Scanned certificates, multi-page mark sheets and phone-made PDFs are often several megabytes, so the portal refuses them. The free PDF Compress tool from Online Wala shrinks a PDF to the size you choose — 100 KB, 200 KB, 300 KB, 500 KB, 1 MB or a custom value — directly in your browser.

Features

Target size: one-tap chips for common limits or type any KB value.
Automatic best quality: the tool tries several resolution and quality combinations and keeps the clearest version that fits.
Colour or Black & White: black & white gives much smaller files for text documents.
Password PDFs: if the PDF is protected (for example e-Aadhaar), you can enter the password to open and compress it.
Before/after size shown after compression.
Private: the PDF never leaves your device.

How to Compress a PDF

Tap Choose PDF and select the file. Enter the password if asked.
Tap a target size such as 200 KB or type your own limit.
Select Colour, or Black & White for a smaller file.
Tap Compress. After a few seconds the compressed PDF downloads and the old and new sizes are shown.

How It Works

Each page is re-rendered as a high-quality image and saved with JPEG compression at the best quality that meets your target. This method works for any PDF, including scanned documents, which usually cannot be reduced much by other methods. One side effect is that text in the new PDF becomes part of the image, so it cannot be selected or searched, but it stays clear for reading and printing — exactly what upload portals need.

Tips to Reach Very Small Sizes

Large page counts make small targets difficult: a 20-page document will not look good at 100 KB. Upload only the required pages — remove extra pages first with PDF Merge. Choose Black & White for typed documents. If you are starting from photos, create the PDF with Image to PDF and its built-in KB limit, or scan pages cleanly with the Document Scanner.

Common Portal Limits

Scholarship portals often allow 200–500 KB per document, recruitment exams 100–300 KB for certificates, and many state service portals 1 MB or 2 MB. Always follow the limit stated on the portal and leave a small margin, for example choose 190 KB when the limit is 200 KB.

Frequently Asked Questions

Can I compress a PDF to 100 KB?

Yes, for documents with a few pages. Choose 100 KB and Black & White for best results.

Does it work with password-protected PDFs?

Yes. Enter the password when asked; the compressed file will not have a password.

Will the text remain readable?

Yes. The tool keeps the highest quality that fits your limit.

Is my PDF uploaded?

No, compression happens entirely in your browser.

Is it free?

Yes, free and unlimited.

Colour or Black & White?

Choose colour for documents where colour matters: photographs, ID cards, stamped certificates with coloured seals and forms with coloured signatures. Choose black & white for typed letters, affidavits, bank statements and printed forms; it can reduce the file size by half or more while keeping text crisp. If a portal requires a coloured scan of a certificate, keep colour and increase the KB limit slightly instead.

Why Compress in the Browser?

Many online compressors upload your file to their servers, which is risky for identity documents, bank statements and certificates. Online Wala PDF Compress works entirely inside your browser using modern web technology. Your PDF is read from your phone, compressed in memory and saved back to your phone. This also means compression works even if the upload speed of your mobile network is slow, and there are no daily limits or waiting queues.

Step-by-step example

A three-page scanned income certificate of 4 MB must be uploaded under 300 KB. Choose the PDF, tap 300 KB, keep colour because of the official seal, and tap Compress. The tool tries several quality levels and downloads the best one under 300 KB, usually in a few seconds. If the seal is not important, black and white can bring the same file close to 100 KB while keeping every line of text readable. Always open the compressed file once before uploading to make sure every page is clear, then upload it with confidence.

Conclusion

With Online Wala PDF Compress, "file too large" errors are gone. Choose your target size and get an upload-ready PDF in seconds.

Made by

Ganesh Gavit

Owner, Online Wala

Founder of Ganesha Digital. Creates software, apps and ready-to-use templates for businesses, students and CSC/VLE operators.

PDF Compress – Reduce PDF Size to 100 KB, 200 KB