PDF Compressor
पीडीएफ कम्प्रेसर
Shrink a scanned PDF toward a target KB, preview the result, and get a clear warning when the target cannot be reached.
Shrink a scanned PDF toward a target KB, preview the result, and see a clear warning when the target is too small to keep the document readable. Everything happens in your browser.
Choose a PDF to begin.
What this can shrink: photos and scanned pages stored as JPEG images inside the PDF. Text and vector lines are left alone, so a scanned document stays readable and any selectable text stays selectable.
What it cannot shrink: a PDF that is mostly text, vector drawings or non-JPEG images. In that case the tool tells you the target is not reachable instead of silently returning a file that is still too large.
Preview uses your browser's PDF viewer. Open the downloaded file once before uploading it to a portal.
About the PDF compressor
This tool reduces the size of a scanned or photo-heavy PDF toward a target you choose, such as the 200 KB or 300 KB limit many Nepali application portals enforce. It re-encodes the JPEG photos inside the PDF at a lower quality and resolution, leaves the text and page layout in place, and shows a preview before you download. The file is processed in your browser and never uploaded.
How the compression works
A scanned page is usually one large photograph stored inside the PDF. The compressor finds those JPEG images, decodes them, re-encodes them at a smaller size, and writes them back into the same pages. Because the page itself is untouched, the result keeps its original layout, page count, and any selectable text or vector lines. The tool tries a series of quality and resolution settings, starting with the best quality that is likely to fit your target.
When the target cannot be reached
Not every PDF can be made arbitrarily small. A document that is mostly text has almost no image data to remove, and a file that is already highly compressed may not shrink further. Instead of returning a file that is still over the limit, the tool tells you the smallest readable size it could produce and lets you decide whether to download it or raise the target. That is the honest result: a 400 KB scan forced into 50 KB would be too blurry to read.
Preview before you submit
The preview uses your browser's built-in PDF viewer. Open every page, check that names, numbers and stamps are still legible, and only then upload the file. A smaller file is not useful if a reviewer cannot read it. If the preview does not appear, download the PDF and open it in your PDF app.
Privacy and limits
Everything runs locally with JavaScript, so citizenship certificates, marksheets and bank statements stay on your device. This is not a replacement for a full PDF editor: it does not remove pages, merge files, add passwords or OCR text. Use it after you have assembled the document with the image-to-PDF tool or your scanner app.