Compress PDF
Make a scanned PDF smaller so it fits a portal's upload limit. You see the size before and after, and text stays selectable.
Choose a PDF
Or drop it here. Works best on scanned documents and PDFs with photos.
Your files stay on this device. The work is done in your browser; nothing is uploaded to us.
How it works
- Choose the PDF that is too large to upload.
- Pick a level. "Balanced" keeps pictures clearer; "Smaller file" saves more and loses more detail.
- Press the button. The pictures inside the PDF are saved again at a lower quality, and very large ones at a smaller size.
- You see the size before and after. If the file came out smaller it downloads; if it did not, you are told so and nothing downloads.
Good to know
- It works best on scanned documents and PDFs with photos, because that is where the size is. A PDF that is mostly typed text has little to give and may not shrink at all.
- Pages are not turned into pictures. Text that could be selected and searched before can still be selected and searched.
- Compression of pictures cannot be undone and each pass loses a little detail. Keep your original, and compress from the original each time rather than compressing a compressed file again.
- Open the result and check that small print, signatures and stamps are still readable before you upload it.
Common questions
- How does it make the PDF smaller?
- Most of the size of a scanned PDF is the pictures of its pages. The tool saves the JPEG pictures inside the file again at a lower quality and, when they are larger than the level allows, at a smaller size in pixels. It then packs the rest of the file more tightly. Text, fonts and page layout are left as they are.
- Why did my PDF not get smaller, or only a little?
- There are three common reasons. The PDF is mostly typed text, so there are no pictures to compress. The pictures are already heavily compressed. Or the scans are stored in a format other than JPEG, which this tool does not change; black-and-white scans are often stored that way. When the result is not smaller, the tool says so and does not give you a file.
- Which level should I choose?
- Start with "Balanced". If the file is still over the portal limit, run "Smaller file" on the original and check the result closely: fine print, seals and signatures are the first things to blur. If it is still too large, rescanning at a lower resolution, in greyscale, or splitting the document into parts may be the only way.
- Will the quality drop?
- Yes, somewhat; that is how the size comes down. Pictures lose some fine detail, more so at "Smaller file". Text that is real text, not a picture of text, is not affected. Always open the result and read it before uploading it with a bid.
- Are my documents uploaded anywhere?
- No. The file is read and compressed inside your browser, on your own device. Nothing is sent to Bidkoo or to anyone else.
More free tools
- EMD CalculatorWork out the earnest money deposit and performance security for a tender value.
- Bid Capacity CalculatorCheck your available bid capacity for a works tender with the (A × N × M) − B formula.
- GSTIN CheckerCheck that a GST number is correctly formed, and read its state and PAN.
- Amount in WordsWrite a rupee amount in words, in lakh and crore, for bid forms and BOQs.
- Merge PDFJoin several PDFs into one file for a tender upload. Your files never leave your device.
- Split PDFTake the pages you need out of a long PDF and save them as a new file.
- Images to PDFTurn photos and scans of certificates into one PDF, a page per image.
- Sign & Stamp PDFPlace a picture of your signature and company stamp on every page of a PDF, or only the pages you choose.
- KML KMZ ViewerOpen the map file from a tender on a map, with the length of each line and the area of each plot.