Case Modify

Compress PDF

Redraw each page as a JPEG to make a smaller PDF. Text in the new file is a picture, so keep the original if you still need to select words.

Pages are redrawn as pictures, so you can select text in the original but not in the smaller file. If the new file is larger, raise nothing — keep the original.

Redraw each page as a JPEG to make a smaller PDF. Text in the new file is a picture, so keep the original if you still need to select words.

Overview

Shrink a PDF by redrawing each page as a JPEG. Compare the new size before you download. The file stays on this device. The file never leaves this tab.

What this page covers

The new file is a picture of the pages. You cannot select the original text, and links are not copied.

Quick answer

Shrink a PDF by redrawing each page as a JPEG. Compare the new size before you download. The file stays on this device. The file never leaves this tab. Use it in a browser with no account required, then review the output before publishing or shipping.

How the smaller file is made

Each page is drawn as a JPEG and placed on a new page of the same size. That often shrinks photo scans. A PDF that is already small text may come out larger. The status line tells you both sizes.

What you lose

The new file is a picture of the pages. You cannot select the original text, and links are not copied. These pages do not convert PDF to Word, Excel, or PowerPoint, and they do not run OCR. Password-protected files are refused.

Unlock a file in the app that created it before you open it here. A signature stamp is an image, not a certificate that proves who signed.

Privacy

After the page loads, the file is read in this browser. Case Modify does not receive a copy. Close the tab to discard it. Very large files and PDFs over 30 pages are refused so the tab stays responsive.

How to use this tool

  1. Open a PDF. Password-protected files are refused.
  2. Set the JPEG quality and compare the new size with the original.
  3. Download the smaller file. The new pages are pictures, so keep the original if you need selectable text.

Getting started

Redraw each page as a JPEG to make a smaller PDF. Text in the new file is a picture, so keep the original if you still need to select words.

Topics this page helps with

People usually land here when searching for compress pdf, shrink pdf, reduce pdf file size. Compress PDF is designed for quick copy-paste workflows: paste input, review the preview, then copy or download the result.

Privacy and local processing

Compress PDF runs in your browser on Case Modify. Typical conversions do not upload your pasted text to our servers for processing.

You still share data with your browser vendor and network as with any website; see our privacy policy for analytics and ads. When you work with secrets, credentials, or personal data, review the output locally before you publish or send it.

Details: privacy policy.

Before you publish

Unicode styling, formatted code, and converted units can look correct in the preview but fail in the target app because of font support, line breaks, or platform limits.

Test a short sample in the destination (bio field, IDE, CMS, or spreadsheet) before you paste a long block.

Workflow tips: how Case Modify works, documentation hub.

Limits to keep in mind

Free browser utilities excel at quick edits, classroom exercises, and copy-paste formatting. They are not a replacement for licensed design software, production build pipelines, or compliance review.

When a platform rejects styled Unicode, fall back to plain ASCII from a case converter or remove formatting before you submit final copy.

Edit PDF — Click existing PDF text and retype it in this browser, then download the file.

Merge PDF — Combine PDF files into one document without uploading them.

Split PDF — Extract a page range or save every PDF page as its own file.

Sign PDF — Draw a signature and stamp it onto a PDF page. This is an image, not a certificate.

Frequently asked questions

Will quality stay the same?

No. JPEG redrawing throws away detail. Lower the quality slider only as far as the page still looks acceptable.

Why did the file get bigger?

Text PDFs are already compact. A JPEG of the same page can weigh more. Keep the original in that case.

Is it uploaded?

No. Compression runs in this browser.

Edit PDF: Click existing PDF text and retype it in this browser, then download the file.

Merge PDF: Combine PDF files into one document without uploading them.

Split PDF: Extract a page range or save every PDF page as its own file.

Sign PDF: Draw a signature and stamp it onto a PDF page. This is an image, not a certificate.

Explore Case Modify

Case Modify publishes free browser-based text converters, code formatters, encoders, random generators, and unit calculators. Each page runs locally after load unless a tool page states otherwise.

  • Case converters hubTitle case, sentence case, uppercase, lowercase, camelCase, PascalCase, snake_case, and kebab-case tools.
  • Code formatters hubJSON, HTML, CSS, JavaScript, XML, YAML, Markdown, GraphQL, TypeScript, and SCSS formatters.
  • JSON tools hubFormat, minify, escape, stringify, and edit JSON in the browser.
  • Text utilities hubFind and replace, duplicate line removal, sorting, encoding, and cleanup utilities.
  • Unit converters hubLength, weight, temperature, time, volume, area, energy, and related conversion calculators.
  • Unicode font styles hubBold, italic, bubble, aesthetic, and platform-specific Unicode text generators.
  • Random generators hubRandom numbers, letters, passwords, UUIDs, dates, and related generators.
  • Case Modify blogGuides on title case, camelCase, JSON formatting, and developer naming conventions.

Machine-readable summaries: llms.txt, llms-full.txt, agents.txt.