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PDF Compressor — Reduce PDF Size, Merge & Extract

Certificate PDF too big for the upload box? Pick the limit, and the tool compresses it — first without any quality loss, then by recompressing pages only if needed. You can also merge files and pull out just the pages a form asks for.

Free · no login · runs on your deviceLast reviewed by NaukriZila Editorial Team

Quick answer

To compress a PDF under 200 KB, choose the PDF, select 200 KB and click Compress. The tool first optimises the file without changing its look; if it is still too large, it converts each page to a compressed image, lowering quality step by step until the PDF fits. Turning on Black & white makes scanned certificates much smaller.

Processed on your device — never uploaded

Compress to under
Pick a PDF and the size your form allows.

How to use the PDF Compressor

  1. 1Pick what to doCompress PDF, Merge PDFs / images, or Extract pages.
  2. 2Add your file(s)Choose the PDF — or several PDFs and photos for merging, and arrange their order.
  3. 3Set the limit or pagesChoose 100 KB, 200 KB, 300 KB, 500 KB, 1 MB or 2 MB, or type the pages to keep such as 1-2, 4.
  4. 4Download and checkDownload the new PDF and open it once to make sure every page is readable.

When to use each option

Compress, merge or extract
You need to…Use
Upload a certificate under 100–500 KBCompress PDF (turn on Black & white for scans)
Upload all marksheets as one fileMerge PDFs / images, then Compress
Upload only one page of a long documentExtract pages
Turn phone photos into one PDFMerge (accepts JPG/PNG) or the Image to PDF tool

Tips for small but readable PDFs

  • Scan or photograph only the pages the form asks for — every extra page adds size.
  • Black & white keeps text crisp at small sizes; use colour only for photos or stamps that must show colour.
  • If the file cannot reach the limit, extract fewer pages or ask whether the form accepts a JPG instead.
  • Password-protected PDFs must be unlocked first (open them and use Print → Save as PDF).

Frequently Asked Questions

How do I compress a PDF to under 200 KB?+

Choose the PDF, select 200 KB and click Compress. If the lossless pass is not enough, pages are recompressed until the file fits.

Will the text remain selectable?+

Yes, if the lossless optimisation is enough. When pages have to be recompressed, they become images — still readable, but text is not selectable.

How do I merge several certificates into one PDF?+

Open the Merge tab, add the PDFs or photos, put them in order with the arrows, and click Merge.

Can I take out one page from a PDF?+

Yes. Use Extract pages and type the page numbers, e.g. 2 or 1-3, 5.

Is it safe for Aadhaar and certificates?+

Yes. Files are processed in your browser and never uploaded to any server.

Does it work on mobile?+

Yes, in Chrome or Safari on Android and iPhone.

Why is my compressed PDF blurry?+

The limit is very small for the number of pages. Choose a higher limit, remove extra pages, or use Black & white.

Requirements differ between recruitments. Always follow the official notification of the exam you are applying for.