PDFWhisk

Updated March 2026

Free PDF tools that respect your privacy

Compress, merge, split, and convert — entirely in your browser. No uploads, ever.

PDFWhisk is a browser-based PDF toolkit for fast everyday tasks. For supported tools, files are processed locally on your device with no server upload.

Drop a PDF to compress instantly

or tap to choose a file · max 100 MB

Local processing active How?

No uploads • No server storage (supported tools)

  • Supported tools run in your browser using local JavaScript.
  • Your document is not uploaded to a processing server.
  • See the Privacy Proof for details.

Best on desktop for 100MB+ files · mobile recommended under ~100MB

Local processing
No uploads
No sign-up

How it works

Three fast steps

Open a tool, process locally, and download right away.

  1. Step 1

    Choose your file

    Drop a PDF on the homepage or open a specific tool page.

  2. Step 2

    Pick the action

    Compress, merge, split, rotate, or convert with clear controls.

  3. Step 3

    Download output

    Get your file in seconds after local in-browser processing.

Popular searches right now

Open the exact page for each task. Works on mobile and desktop.

PDF compressor online free Convert JPG to PDF on iPhone PDF too large for email Rearrange pages in PDF Merge PDF on iPhone Convert screenshot to PDF Extract single page from PDF Scan photos into PDF Compress PDF on iPhone PDF to JPG free online PNG to PDF on Android PDF too large for job application Reduce PDF file size Make a PDF smaller JPG to PDF on Android Convert picture to PDF on iPhone

All PDF tools

Every tool runs in your browser. No file uploads, no sign-ups.

Common PDF tasks

Direct links to the specific PDF jobs people search for — compress to a target size, merge on a phone, split for upload limits, and more.

PDF compressor online free Combine photos into one PDF Scan photos into PDF Image to PDF on phone JPG to PDF on phone Convert JPG to PDF on iPhone JPG to PDF on Android PDF to JPG on phone PDF to JPG on iPhone PDF to JPG on Android Extract PDF pages as JPG PDF to PNG on phone How to convert JPG to PDF on iPhone Convert JPG to PDF on Android Photos to PDF on iPhone Convert a photo to PDF on iPhone Photos to PDF on Android Convert JPG to PDF iPhone
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PDF tools by situation

Why PDFWhisk?

Truly private

Files never leave your device. Processing happens in your browser using JavaScript — we literally cannot see your documents.

Target-based compression

Don’t guess quality sliders. Pick an exact file size — 2 MB, 5 MB, 10 MB, or 25 MB — and we hit it.

Mobile-first

Large tap targets, clear step flows, and fast rendering. Built for iPhone and Android from day one.

Instant results

No queues, no waiting for server processing. Your device does the work, so results appear in seconds.

About the site

Built for straightforward PDF jobs, not clutter

PDFWhisk focuses on common real-world tasks: compressing a file for email, merging scans on a phone, splitting pages for upload limits, or converting images into a PDF without installing heavyweight software.

Supported tools process documents locally in the browser. The site is funded by optional Pro purchases and advertising, with privacy and product explanations documented publicly.

About PDFWhisk Editorial standards Contact

Transparency

What we disclose

  • Privacy model: supported workflows keep files on your device.
  • Advertising: Google AdSense may use cookies to serve and measure ads.
  • Policies: privacy, cookies, terms, and contact details are public.
Privacy proof Cookie policy

Popular guides

Email

Compress PDF for email attachments

Get under the 25 MB limit for Gmail, Outlook, and Yahoo Mail.

Mobile

Compress PDF on iPhone

No app download needed. Works in Safari, Chrome, and Firefox.

Mobile

JPG to PDF on phone

Convert photos and screenshots to one PDF on iPhone or Android.

Photos

Combine photos into one PDF

Create a single multi-page PDF from receipts, screenshots, or camera photos.

Uploads

Split PDF for upload limits

Break large PDFs into smaller files that meet portal size limits.

Uploads

Split PDF by file size

Use page ranges + compression follow-up to hit strict MB limits safely.

Mobile

Merge PDFs on your phone

Combine documents straight from your camera roll or Files app.

Career

Compress PDF for job applications

Shrink your CV to meet portal upload limits without losing clarity.

Blog

More tips & guides →

Read our blog for PDF tips, tricks, and tutorials.

Frequently asked questions

Are PDFWhisk tools really free?

Yes. Core tools are free to use with no account required. You can compress, merge, split, rotate, and convert PDFs directly from the browser.

Do you upload my files to a server?

Core tools are designed to process files in your browser using local JavaScript. That means your document does not need to be uploaded for processing.

Can I use PDFWhisk on iPhone and Android?

Yes. PDFWhisk is mobile-first and works in modern mobile browsers including Safari and Chrome.

Which tool should I use first for upload limits?

Start with Compress PDF and choose a target size such as 2MB, 5MB, 10MB, or 25MB. If you still miss the limit, use Split PDF and then recompress the parts.

Need more detail? Open the Privacy Proof page or browse the full tool sitemap.

Ready to get started?

Pick a tool above, or drop a PDF on the homepage to compress it instantly.

Compress PDF Merge PDF All tools