25 free PDF tools.
Zero of them upload your file.
Every tool below runs entirely in this tab, on your device, using pdf-lib vendored locally — not fetched from a CDN, not sent to a server. Open DevTools, watch the Network tab, and confirm it yourself before you trust any of them with a real file. No sign-up, no watermark added to your output, no daily limit.
Combine & split
Rearranging which pages live in which file — the most common reason anyone opens a PDF tool in the first place.
Organize pages
Once the file is together, these change what each page looks like or where it sits — without touching the actual content.
Delete Pages
Remove specific pages and keep the rest as one file.
Duplicate Pages
Repeat a cover page, a form, or a signature page elsewhere in the same PDF.
Insert Blank Pages
Add blank pages before a cover, between chapters, or at the end for notes.
Reorder
Drag pages into a new order or drop the ones you don't need.
Rotate
Fix pages that scanned in sideways — one page, a range, or the whole file.
Crop Pages
Trim visible margins on every page — set top, bottom, left, and right in points.
Resize Pages
Rescale a whole PDF to a standard size (A4, Letter, Legal, A3, A5) or a percentage.
Pages per Sheet
Print 2 or 4 pages onto a single sheet — saves paper and ink.
Reduce & convert
Changing the file itself — its size, its color space, or what format it's in.
Compress
Shrink file size by re-encoding the embedded images inside the PDF.
Grayscale PDF
Convert RGB and CMYK text and graphics to grayscale using the standard luminosity formula.
Images to PDF
Turn JPG or PNG images into a single PDF, one page per image, reorderable first.
Extract Images
Pull the JPEGs embedded in a PDF back out as standalone files or one .zip.
PDF to JPG
Render every page of a PDF as a JPG or PNG image, downloadable one at a time or as a .zip.
Stamp & brand
Adding something visible to every page, without editing the underlying content.
Watermark
Stamp your own text across every page — pick opacity and angle.
Image Watermark
Stamp a logo or image onto every page — pick opacity, scale, and position.
Page Numbers
Stamp page numbers onto every page, any corner, any starting number.
Page Borders
Draw a border frame on every page — margin, color, and stroke width, your choice.
Forms & metadata
Working with a PDF's structure below the surface — its interactive fields, its outline, or the data attached to the file itself.
Fill Form Fields
Type straight into a PDF's existing text fields, checkboxes, radio buttons, and dropdowns.
Flatten Form Fields
Convert a filled-in form into permanent, non-editable static content.
Add Bookmarks
Add named outline entries that jump straight to a page in any PDF reader's sidebar.
Metadata
View and edit a PDF's Title, Author, Subject, Keywords, and dates.
Privacy & content removal
Actually deleting sensitive content from the file, not just hiding it from view.
Common questions
Are these PDF tools actually free, or is there a catch?
Free with no catch on the tools themselves — no watermark added to your output, no daily conversion limit, no forced account. A Pro tier is planned for batch operations (processing many files at once), not for gating the individual tools above.
Do I need to install anything?
No. Every tool runs in the browser tab you're already in. Nothing to install, and nothing keeps running after you close the tab.
Is my PDF actually private?
Yes — verifiably, not just by policy. Every tool processes the file locally using pdf-lib. Don't take that on faith: here's how to confirm it yourself in 10 seconds using your browser's Network tab.
My file is huge and the tab froze — what happened?
Large files run into the constraints of the device processing them, since there's no server doing the heavy lifting instead. See why large files can freeze the tab, and how to work around it.
Not sure which tool you need? Start with Merge if you're combining files, Split if you're breaking one apart, or Compress if the file is too large to email. Every tool above shares the same rule: it never leaves your device.
Coming from another PDF tool?
Honest, detailed comparisons if you're evaluating a switch.
iLovePDF Alternative
What iLovePDF does well, what ClientPDF does differently, and who should switch.
Smallpdf Alternative
An honest comparison of Smallpdf's polish against ClientPDF's no-upload approach.
PDF2Go Alternative
PDF2Go's format-conversion breadth vs. ClientPDF's private, in-browser core tools.