How to Compress a PDF Without Losing Quality
Large PDFs get rejected by email servers and eat cloud storage. Learn how to shrink a PDF's file size in seconds — directly in your browser, no upload required.
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Compress
Merge
Split
Convert
Watermark
Remove Pages
Reorder Pages
Protect PDF
Unlock PDF
Page Numbers
The PeakPDFs Blog
PDF tips, tutorials, and guides — no fluff, just useful.
How to Merge PDF Files Online for Free
Combine multiple PDFs into one, reorder pages before merging, and download instantly — all without uploading your files to any server.
How to Split a PDF Online for Free
Extract a specific page range or split every page into its own file — all in your browser without uploading anything.
How to Convert PDF to JPG Online for Free
Convert PDF pages to high-quality JPG images at 72, 150, or 300 DPI. Single pages download as JPG; multi-page PDFs download as a ZIP.
How to Add a Watermark to a PDF for Free
Stamp any PDF with custom text — control opacity, angle, colour, size, and which pages to watermark. Live preview before you apply.
How to Remove Pages from a PDF Online for Free
Delete blank pages, cover pages, or confidential content from any PDF. Preview thumbnails before you remove anything — no guesswork.
How to Reorder Pages in a PDF Online for Free
Drag and drop page thumbnails into any order, then download a perfectly sequenced PDF — no desktop software required.
How to Password-Protect a PDF Online for Free
Apply AES-256 encryption to any PDF in seconds. Understand how user vs owner passwords work and how to choose a strong password.
How to Unlock a Password-Protected PDF Online for Free
Remove a PDF password you already know — enter it once and get an unlocked copy. Your password never leaves your browser.
How to Add Page Numbers to a PDF Online for Free
Stamp page numbers on every page of any PDF. Choose position, format ("Page 1 of N"), starting number, and font size.