What does the range syntax accept?

1-indexed, inclusive page numbers separated by commas. Ranges use a dash: `1-3, 5, 7-9` means three output PDFs (pages 1–3, page 5 alone, pages 7–9).

Can I split a password-protected PDF?

No. folio cannot unlock encrypted PDFs in this version. Unlock the file first, then drop the unlocked copy into the splitter.

Will the original PDF be modified?

Never. folio reads the file into browser memory, builds new PDFs from the ranges you typed, and writes nothing back to the original. Closing the tab erases everything.

Is this PDF toolkit free?

Yes. folio is free to use, no account is required, and there are no paid plans.

Are my PDFs uploaded to a server?

No. folio runs entirely in your browser. Your PDFs are never uploaded, never seen by our infrastructure, and never stored anywhere outside your device. When you close the tab, every file is gone.

Which operations are supported?

Merge PDFs, split a PDF into ranges, compress a PDF, convert PDF pages to JPG or PNG, build a PDF from images, rotate all or selected pages, add a watermark, and extract plain text. All of this happens in your browser.

Is there a file size limit?

Yes. Each file may be up to 100 MB. Browser memory is the real ceiling — very large scanned PDFs may struggle on lower-end devices.

Can I work with multiple PDFs at once?

Yes. Merge and Images→PDF accept up to 20 files in a single batch. Split, Compress, Rotate, Watermark and Extract Text take one PDF at a time.

Will my converted images / PDFs lose quality?

Compress and PDF→JPG/PNG re-render pages at the DPI/quality you pick, so there is a small generational loss like any image re-encode. Merge, Split, Rotate, Watermark and Extract Text do not re-render — they only edit the existing PDF objects, so quality is preserved.

Can folio open password-protected PDFs?

Not yet. If your PDF requires a password to open, please unlock it first in a dedicated app. We deliberately skip password handling to keep folio fully client-side and free of legal grey areas.

Not in this version. Extract Text only works for PDFs that already have selectable text. Scanned image-only PDFs need OCR, which is a separate, much heavier project we may add later.

Why does the first PDF→Image take a moment?

When you first use an operation that renders PDF pages (PDF→JPG, PDF→PNG, or split previews), folio downloads the rendering engine (~1 MB). After that it stays cached and subsequent operations start immediately.

Are ads required to use the tool?

No. Ads are isolated from the converter. The tool works completely even if ads fail to load or are blocked.

One PDF → Page ranges

Split a PDF

Drop a PDF below and pick the pages you want to keep. folio splits them into one or more new PDFs inside your browser — nothing is uploaded, nothing is stored.

Drop your PDF here

Then pick the pages or ranges you want to extract

Choose PDF

PDF

Upload a file to start.

One PDF up to 100 MB.

Every operation runs entirely in your browser. Your files never leave your device.

About Split PDF

How do page ranges work?

Type ranges like `1-3, 5, 7-9` to produce three separate PDFs: pages 1–3, page 5 alone, and pages 7–9. Ranges are 1-indexed and inclusive. If you give multiple ranges, folio bundles them as a ZIP; one range comes back as a single PDF.

Will the original PDF change?

No. folio reads your file into memory, builds new PDFs from the chosen ranges, and never touches the original on disk. Closing the tab erases the in-memory copy.

Can I extract a single page?

Yes. Type a single page number (for example `5`) and folio will return a one-page PDF. To grab several individual pages, comma-separate them: `1, 4, 7`.

About this operation

PDF → ZIP

What it does

Drop a PDF, type the ranges you want (`1-3, 5, 7-9`) and folio builds one new PDF per range, then bundles them as a ZIP if you asked for more than one. Ranges are 1-indexed and inclusive. The original file on disk is never touched — folio reads it into browser memory, writes the new PDFs, and forgets everything when you close the tab.

When to use it

Extract just the signed pages of a long contract
Pull each chapter out of a single PDF book into its own file
Pick out a single receipt from a bundled month
Hand off page ranges to different reviewers

Limitations — what it doesn't do

Cannot split password-protected PDFs — unlock first
Page ranges must be valid (no out-of-bounds, no overlap protection)
Bookmarks pointing to pages outside the selected range are dropped

Every tool runs entirely in your browser.

Frequently asked questions

Your PDFs never leave your device

folio is a static page. Every operation runs inside your browser via pdf-lib (edit) and pdfjs (render). There is no server-side processing, no upload, no temporary file, no cache. When you close this tab, every file is gone.

No account required.
No server processing. Your PDFs stay on your device.
No caching, no Service Worker, no IndexedDB persistence.
pdfjs-dist (lazy-loaded for rendering) is fetched from your own origin; nothing else is sent.