Reduce PDF file size by re-encoding embedded images at your chosen quality tier. 100% private — runs in your browser.
PDFdukan's PDF Compressor attempts to reduce file size by rendering each page at the quality tier you choose. Results vary, and selectable text becomes part of the page image. Whether you have a scanned document full of high-resolution images or a report that's too large to email, this tool handles it instantly. Everything runs inside your browser using JavaScript — your file is never sent to any server, never stored in the cloud, and never seen by anyone else.
Unlike most online compressors that upload your file to a third-party server and process it there, PDFdukan compresses your PDF entirely on your own device. This means your confidential documents — CNIC copies, salary slips, medical reports, legal papers — stay 100% private. No account registration, no watermarks, no daily limits, and no hidden fees.
Your PDF never leaves your device. Processing happens locally in your browser — zero server uploads, zero data collection.
No waiting for uploads or server queues. Compression starts the moment you select your file and finishes in seconds.
Works on any smartphone, tablet, or computer — Android, iPhone, Windows, Mac. No app download needed.
No subscription, no per-file fee, no file-size cap. Compress as many PDFs as you want, every day, for free.
The reduction depends on the content of your PDF. Image-heavy pages often have more room to shrink, but the result depends on page complexity and the selected quality tier. An already optimized file may not shrink; in that case PDFdukan returns the original bytes instead of a larger replacement.
The tool shows the original and final file sizes after processing. Because pages are rasterized, review small text and graphics in the downloaded PDF before submitting or printing it.
This tool renders each page as a JPEG image before rebuilding the PDF, so selectable text becomes part of the page image. Higher compression can reduce sharpness. Use the High Quality setting for printing or small text, and inspect the downloaded result before relying on it.
Results vary by page complexity, image content, and the selected quality level. Some files shrink substantially, while an already optimized PDF may not shrink at all. PDFdukan keeps the original bytes when its generated file would be larger.
No. PDFdukan uses client-side JavaScript (PDF.js and PDF-lib) to process the selected file inside your browser; the tool does not send the PDF to PDFdukan's server.
There is no enforced file-size limit, but available memory, page count, page dimensions, and browser limits determine what your device can process. Large files can be slow or fail, especially on phones.
The result is a standard PDF and can be printed in mainstream readers. Because pages are rasterized and may be lossy, inspect fine text and graphics before printing.
Password-protected PDFs need to be unlocked before they can be compressed. Use the Unlock PDF tool on PDFdukan to remove the password first, then compress the unlocked file. Both tools are free and work in your browser.
Yes. The output is a standard PDF produced by PDF-lib and should open in current mainstream PDF readers. If a particular reader has trouble, try the original file or another current reader.
PDFdukan performs this compression in your browser and does not require an account. Other services may use different processing methods, plans, or limits; check their current privacy and pricing pages when comparing them.
Yes. PDFdukan is free with no subscription, no per-file fee, no credit card required, and no limit on how many files you compress. There is currently no paid tier for this tool.
Yes. PDFdukan works on any Android or iPhone browser — Chrome, Samsung Internet, Safari, Firefox. It is especially useful for students and job seekers in Pakistan who need to compress PDFs for PPSC, FPSC, NTS, and university portals that have strict file-size limits. No app download is needed.
Currently the tool processes one PDF at a time. After compressing and downloading the first file, you can immediately upload and compress another. Batch compression for multiple files is on our roadmap. For now, the Merge PDF tool can combine multiple PDFs first, then you can compress the merged result.
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