Compress PDF Online and Reduce File Size

Compress PDF online and reduce file size in seconds. Upload a document, choose a compression level, and download a smaller PDF that keeps its layout and quality. Free, secure, and no sign-up.

How to Compress PDF Files

Upload your document to Pdf Jenny, pick High, Medium, or Low compression, and click Compress PDF. We optimise images, remove unused data, and keep fonts and layout intact. Download the reduced file or run another pass for a smaller size.

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Drop document here to upload

Up to 100MB for PDF

PDF Bot

PDF Bot

Remove Pages You Do Not Need

  • Remove a single page or a range.
  • Batch-remove pages across long documents.
  • Avoid mistakes with PDF Jenny’s preview before delete function.
PDF Bot

Extract Specific Pages

  • Export chosen pages into a new PDF.
  • Keep original layout, fonts, and images.
  • Name files clearly for quick sharing.
PDF Bot

Split Into Separate Files

  • Break a long PDF into smaller pieces.
  • Split by custom ranges you set.
  • Create a new file for each page if you prefer.
  • Download all results in one go.
PDF Bot

Split Into Separate Files

  • Break a long PDF into smaller pieces.
  • Split by custom ranges you set.
  • Create a new file for each page if you prefer.
  • Download all results in one go.
PDF Bot

Rotate Before Splitting

  • Fix sideways scans so every exported file reads correctly.
  • Turn pages left or right.
  • Rotate a single page or a selection.
  • Keep the original quality.

Features of Pdf Jenny’s PDF Compressor and Size Reducer

Compress PDF online with adjustable levels that reduce PDF file size while keeping layout and readability.
Our PDF size reducer handles scanned PDFs, large files, and batches quickly, with secure processing and no sign-up or watermark.

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Adjustable compression levels

Select from High, Medium, or Low options to control PDF compression. Images downsampled, graphics recompressed, and metadata cleaned—size shrinks while staying readable.

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Image resolution control (DPI)

Set DPI for screen or print. Lower DPI makes files lighter, higher DPI keeps charts and photos sharp after compression.

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Grayscale and colour options

Convert pages to grayscale to reduce size while keeping text legible. Ideal for text-heavy scans, invoices and case files.

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Keep or remove media & attachments

Retain or strip embedded video, audio, and attachments. Removing media reduces PDF size dramatically.

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Fast compression speed

Jobs complete in seconds—even for large files! Get a smaller file quickly to send, upload, or archive.

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Safe and private processing

Files transferred via HTTPS and auto-deleted after processing. No sign-up, no watermark—100% private.

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Batch compression for large files

Queue multiple documents and compress in one go. Perfect for reports, brochures, or scanned archives.

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Works on any device

Use in browser on desktop, tablet, or mobile. Nothing to install, consistent results across devices.

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Preserves layout & content

Text, fonts, tables, and page size stay intact. Get a smaller PDF without losing structure or clarity.

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Practical Uses of Compress PDF

Use Pdf Jenny to compress PDF online when you must meet upload limits or speed up sharing.
These use cases reduce size while keeping layout and readability.

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Email and messaging limits

Compress PDF for email so attachments meet 10–25 MB rules and open quickly on every device.

Online forms and portals

Reduce PDF file size for HR systems, tender sites, and student submissions that enforce strict caps.

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Scanned documents and archives

Use the compress scanned PDF setting to shrink scans, keep them legible, and save storage.

Mobile sharing

Make PDFs smaller so they upload on mobile data, download faster, and store easily on phones.

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Web publishing and downloads

Optimise PDF for web with fast-web-view so pages load quickly on sites, blogs, and portals.

Sales and marketing packs

Shrink brochures, decks, and price lists for easy client download without hurting brand visuals.

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Legal and finance records

Reduce case files, statements, and invoices while keeping fonts, layout, and page numbers intact.

Education and research

Compress handouts and articles so students and colleagues download resources in seconds.

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Project reporting and teams

Send weekly reports as compact, professional PDFs and cut cloud storage costs across the team.

Frequently asked questions

Upload your document to Pdf Jenny, choose a compression level, then click Compress PDF. We down-sample images, remove unused data, and return a smaller file that keeps the same layout.

Pick Medium compression. Text, fonts, vectors, and page size stay the same. Images are optimised, so you get a smaller file that still looks clear.

Use the Email preset or Medium level to compress PDF for email. It balances clarity and size so attachments meet common limits and open fast on mobile.

Yes. Files are sent over HTTPS and auto-deleted after processing. Only you can access your documents during compression. Pdf Jenny does not keep your content.

Yes. Pdf Jenny works in your browser on iPhone, Android, tablet, Windows, and Mac. No app to install.

Not with sensible settings. We keep text crisp and preserve layout. If images look too soft, try Medium or Low compression instead of High.

Yes. We follow secure handling and automatic deletion. There are no watermarks or sign-ups, and your files remain private.

Add multiple files and use batch compression. Compress them in one session, then download all results together.

Yes. Choose the greyscale option when you need smaller files for text-heavy pages or scans that do not need colour.

Select Web or Medium compression and set a screen-friendly DPI. This optimises PDF for web so pages load quickly on sites and portals.

Yes. The tool is fully responsive and runs in modern browsers. It performs the same on desktop and mobile.

If you know the password, unlock the file first and upload it. Then compress as normal and save the smaller version.

Yes. Use compress scanned PDF to clean backgrounds and recompress images while keeping the scan readable.
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