Crop PDF Online — Free & Private
Trim margins from every page by a set amount on each side. Free, private, and processed entirely in your browser — no upload, no account, no file ever leaves your device.
How to use Crop PDF
Trim margins from every page by a set amount on each side. Everything runs in this tab — nothing is uploaded for the core job.
- Add your PDF — Drop a file onto the Crop PDF tool or click to browse — it's read directly into your browser's memory.
- Choose your options — Set any options Crop PDF offers.
- Download the result — Get your finished file straight away \u{2014} it was never sent to a server.
Privacy proof for Crop PDF
This tool processes files in your browser. Open DevTools → Network while you run it: your document is not uploaded. After one online visit, many tools keep working with Airplane Mode on (libraries cached locally).
Popular tools
The highest-demand tools with full options — browse by category below for the rest.
Star any tool — it appears under Favorites on this device.
How this actually works
Each tool runs entirely with JavaScript already loaded in this page — PDF tools via pdf-lib and pdf.js, image tools via the browser's native Canvas API, and everything else with plain JavaScript. Your files or input are read into browser memory, processed, and handed back as a download or copyable result. This page itself is served by a small Laravel route; Laravel never sees your files either. The only backend in use is Supabase, and only for two optional things: signing in with a magic link, and — only if you're signed in — a log of which tool you ran and when. Honest limits worth knowing: Compress PDF flattens each page to a re-encoded image (great for scans, not ideal if you need selectable text after); HEIC conversion uses a small on-demand converter when the browser cannot decode HEIC natively (Safari often works without it); Fill PDF Form is best-effort for simple AcroForm fields, not a full Adobe Forms replacement; and Word/Excel/PowerPoint ⇄ PDF genuinely needs a server-side engine, so it isn't included — this build only ships tools that can honestly run client-side.
Questions people actually ask
Can I crop each side by a different amount?
Yes — set separate margins for top, bottom, left, and right before running it.
Does cropping delete content or just hide it?
It permanently trims the page boundary — anything outside the new margin is removed from the resulting file.
What unit are the margins in?
Points — 72 points equal 1 inch, and a typical letter/A4 page is roughly 595–612 points wide, as noted in the tool's own hint text.
What happens if I enter margins that are too large?
Any page where the margins would leave no visible area is skipped automatically rather than producing a broken, zero-size page, and the result tells you how many pages were skipped.
Does cropping apply to every page the same way?
Yes — the same top/right/bottom/left margins are trimmed from every page in one run.
Can I preview the crop before running it?
Not as a live preview — enter margin values based on the page-size hint shown, then check the result and re-run if needed.
Does cropping affect text or image quality?
No — cropping only changes the page boundary (the crop box); the content inside it isn't re-rendered or recompressed.
Can I crop a scanned PDF?
Yes — cropping works the same regardless of whether the page is a scanned image or real text.
Is this really free, and is there a file size limit?
Yes — no account, no paywall. Since processing happens in your browser's memory rather than uploading anywhere, the practical limit is your device's available RAM, not a server quota. Very large files (500+ pages) may run slower, especially for Compress and PDF→JPG.
Does anything about my file get sent anywhere?
No. Every tool runs with pdf-lib/pdf.js loaded in this page; your file is read into browser memory and never leaves it. The only network call this app makes for your account is Supabase auth — and that only stores which tool you ran and when, never file content.
Why isn't Word/Excel/PowerPoint → PDF included?
Converting Office formats accurately needs a real rendering engine (what Word or LibreOffice use internally) — no browser library does this reliably. Rather than ship a broken version, it's left out.
Does TechDriven Tools have OCR (text recognition)?
Yes — OCR PDF recognizes text in scanned or photographed pages using Tesseract.js, running entirely on your device, and gives you a searchable PDF or a plain text file. Nothing is uploaded for this either.
Can I use this without an internet connection?
Once the page and its libraries have loaded once, yes — the tools themselves need no network access. Signing in and viewing history do require a connection, since those talk to Supabase.
What happens to the "history" if I sign in?
Only a row per tool run — the tool's name and a timestamp. No filename, no file content, ever. You can see the full list any time via the History button.
Are the non-PDF utilities (password generator, JSON formatter, etc.) private too?
Yes — same rule as the PDF tools. Word Counter, Case Converter, Password Generator, UUID Generator, Base64, Hash Generator, JSON Formatter and JWT Decoder all run with plain JavaScript already loaded in this page; nothing you type or paste is sent anywhere.
Crop PDF, in depth
Trim margins from every page by a set amount on each side — useful for removing scanner borders or wasted whitespace.
Features
Per-Side Margins
Set a different trim amount for top, bottom, left, and right.
Every Page
The same crop is applied consistently across the document.
No Re-render
Content is unchanged — only the visible page boundary shrinks.
Instant
No upload wait, no file size limit beyond your device's memory.
Why use Crop PDF
- Remove a scanner's black border from a batch of scanned pages.
- Cut wasted whitespace from a document before printing.
- Standardize page size across pages exported at slightly different dimensions.
- Trim a PDF for a specific print layout that expects tighter margins.
How it works
Cropping changes each page's visible boundary (its "media box" in PDF terms) rather than deleting any content — the underlying page content is untouched, just clipped at a new edge. This is why cropping never re-renders text or images: the crop is a boundary change, not an image operation.
A note on uneven scans
Since the same margin is trimmed from every page, a batch of scans with inconsistent original margins may crop slightly unevenly. For a document where every page needs a different trim, this tool isn't the right fit — it's built for the common case of one consistent margin issue across a whole file.
Why people search for Crop PDF
Trim margins from every page by a set amount on each side. For teams, share the link instead of emailing binaries of desktop installers — everyone gets the same Crop PDF behavior in a modern browser.
Crop PDF sits in our PDF Tools group. The page is built so you can finish the job without creating an account, installing a desktop pack, or sending the payload to an unknown converter API.
Who Crop PDF is for
- You want a second opinion after another converter produced a weird output.
- You need a result now and do not want another account wall.
- The file or text is sensitive enough that uploading feels wrong.
- A desktop suite is overkill for a one-page or one-photo job.
Recommended workflow
Add unlocked PDFs → set order or ranges → run → open the download and spot-check first, middle, and last pages.
- Open Crop PDF (also available from category hubs and ⌘K).
- Use the labeled fields or dropzone — options match what Crop PDF actually does.
- Run the tool and wait for local progress to finish.
- Download or copy the result, then verify on the device where you will share it.
Tips that improve results
- Change one setting at a time when you are comparing quality or layout.
- Keep the original until stakeholders accept the download.
- Rename the output with date + purpose before you attach it to email.
- On phones, plug in power for large PDFs, videos, or spreadsheets.
- Prefer UTF-8 text for developer converters; weird encodings cause most “broken” results.
- Start with a non-sensitive sample so you learn the options before the real file.
Common mistakes with Crop PDF
- Expecting Crop PDF to replace a full desktop suite for every edge-case format.
- Skipping a sample check and discovering a bad export after the original was deleted.
- Chaining many lossy image/PDF steps when one careful pass would have been enough.
- Using a public computer without clearing downloads afterward.
Privacy model
Processing for Crop PDF is designed to stay in the browser. Laravel serves the page; it does not receive your file bytes for conversion. Optional Supabase auth only stores which tool you ran and when — never filenames or contents.
Related tools
FAQ — Crop PDF
Is Crop PDF free to use?
Yes. Crop PDF on TechDriven Tools is free — no account, no watermark, and no paywall for the core workflow.
Does Crop PDF upload my file or text?
No for processing. Crop PDF runs in your browser tab. Optional sign-in never stores file contents — only tool names and timestamps if you enable history.
When should I use Crop PDF?
Use Crop PDF for PDF Tools jobs where privacy and speed matter: quick one-offs, sensitive inputs, or checking another app’s result without another upload site.
Will Crop PDF work on my phone?
Yes in a modern mobile browser. Large inputs can take longer because your device does the work locally.
What are the limits of Crop PDF?
There is no server quota from us. Limits are your device memory, battery, and formats the browser can decode. Crop PDF will not pretend to support server-only Office or cloud-AI pipelines.
How is Crop PDF different from upload-based sites?
Upload converters send your content to someone else’s server. Crop PDF keeps the transform on-device whenever the format allows, which is the safer default for confidential documents, photos, tokens, and configs.
Bottom line
If you need Crop PDF done quickly and privately, start at /crop-pdf, run it once on a sample, then process the real input. That is how TechDriven Tools stays competitive: honest capabilities, labeled UI, and content that matches what the tool actually ships.
From our blog: How to Crop a PDF Online