Reduce PDF file size by re-encoding embedded images at your chosen quality tier. 100% private — runs in your browser.
PDFdukan's PDF Compressor reduces the file size of any PDF document by up to 80% while keeping the text sharp and readable. 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. A scanned document made of images (like a scanned CNIC, salary slip, or form) can shrink by 50–80% because image data compresses very effectively. A PDF created directly from Microsoft Word or Excel (text-based) will compress by 10–30%, since text is already compact in PDF format. PDFs with embedded fonts and vector graphics fall somewhere in between.
As a real-world example: a 10MB scanned letter typically compresses to under 2MB without any noticeable loss in readability. A 500KB Word-exported PDF may compress to 400KB. The tool always shows you the original and final file size so you can compare.
No. Text in a PDF is vector-based and stays perfectly sharp at any compression level. Images may lose a small amount of sharpness at higher compression, but text, tables, and charts remain clear and fully readable. For documents you'll print, use a lighter compression setting to preserve image quality.
Scanned image-heavy PDFs typically shrink by 50–80%. Text-based PDFs created from Word or Excel compress by 10–30%. The exact reduction depends on the content, fonts, and image resolution inside your specific file. The tool shows you the before and after file sizes immediately after compression.
No. PDFdukan uses client-side JavaScript (PDF-lib) to process your file entirely inside your browser. Your PDF never leaves your computer or phone. This is the key difference between PDFdukan and tools like iLovePDF or Smallpdf, which upload your file to their servers. With PDFdukan, confidential documents stay on your device.
There is no enforced file-size limit. The practical limit is your device's available RAM. Most modern smartphones and laptops handle PDFs up to 50MB without any problem. For very large files (100MB+), a desktop or laptop with at least 4GB of RAM works best. The browser tab may take 10–20 seconds for very large files.
Yes. The compressed PDF is a standard PDF file that prints normally in any application — Adobe Acrobat Reader, Chrome, Microsoft Edge, or any printer. There is no watermark, no restriction, and no difference in how it prints compared to the original.
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/1.4 file compatible with every PDF viewer — Adobe Acrobat Reader, Google PDF viewer, Apple Books, WPS Office, and all major Android and iOS PDF apps. There are no compatibility issues.
The biggest difference is privacy and cost. iLovePDF and Smallpdf upload your file to their servers for processing — your document leaves your device. PDFdukan processes everything locally in your browser. Additionally, iLovePDF and Smallpdf limit free usage (number of files per day, file size caps, or force account registration). PDFdukan has no limits, no account requirement, and is completely free.
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 are no premium tiers for the PDF Compressor. It will remain free.
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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