Folio · PDF Reader
Merge, reorder, rotate and extract PDF pages in seconds.
Clean up messy multi-page PDFs before you send them. Folio lets you append additional PDF files, rotate sideways scans, crop margins, delete blank pages, or split out a clean page range — all locally in your browser.
Free with a SEMDIV account: up to 20 PDFs, 100 MB each.

How it works
- 1
Open your primary PDF
Load your main document in Folio's page studio.
- 2
Merge, rotate or delete
Append another PDF, rotate individual pages 90°, crop margins or remove unwanted pages.
- 3
Export clean PDF
Save the reorganized document or extract a specific page range.
What you can do with Folio
Multi-PDF merge
Append one or more PDF files directly into your current document.
Per-page rotation
Fix sideways or upside-down scanned pages individually or across the whole file.
Precision page cropping
Trim wide margins or scanner borders cleanly.
Page range extraction
Export only selected pages (e.g., pages 1–3, 7) as a standalone PDF.
Headers, footers & Bates numbering
Add continuous page numbers or legal Bates stamps after merging.
Local browser speed
No waiting to upload and re-download 80 MB PDFs.
More Folio workflows
PDF Editor →
Folio opens any PDF instantly and gives you precision tools to highlight, comment, sign and redact. The PDF itself stays in your browser on your device; your edits follow your workspace.
Sign PDF Online →
Skip printing, scanning and expensive e-signature subscriptions. Folio lets you fill out PDF form fields, add checkmarks and dates, and place a crisp drawn or typed signature — while keeping the confidential PDF on your own device.
Redact PDF Online →
Drawing a black rectangle over text in a regular PDF editor is a classic security disaster — anyone can still select, copy or search the text underneath. When you apply redactions in Folio, every redacted page is flattened and rasterized with the opaque black boxes burned in on top, permanently destroying the underlying text and vector data.
Questions about Folio
Can I merge several PDFs and then annotate them?
Yes. Merge your PDFs in Folio, add page numbers, highlights or signatures, and export the combined result in one pass.
Does rotating or deleting pages reduce image quality?
No. Page rotation, deletion and merging operate losslessly on the PDF page tree.