TL;DR

Most "free online PDF editors" are free until you hit a page cap, a daily task limit, or a watermark you did not notice on preview. The genuinely usable free tier belongs to Sejda (3 tasks/hour, 200 pages, 50 MB) for real editing, PDF24 for unlimited utility tasks with no signup, and Xodo for browser-based annotation. Smallpdf and iLovePDF are polished but hit the free wall fast. If your document is sensitive and you would rather not upload it at all, use a Chrome extension like Convert Anything to PDF that processes locally in the browser.

The comparison matrix (page limits, watermarks, signup)

Before the rankings, the honest version of the marketing pages. Every free tier has a wall — the question is where it is and whether it is disclosed before you upload.

ToolSignup requiredWatermarkPage limitFile sizeTask limit
SejdaNo (for free tier)No200 pages50 MB3 tasks/hour
PDF24 ToolsNoNoNone on most tools100 MB (varies)None
XodoOptionalNoNone (annotation)Browser-limitedNone on view/annotate
SmallpdfNo (2/day free)No on free tasksNot stated5 GB (Pro)2 documents/day
iLovePDFNo (limited)No on basicVariable100 MB freeDaily rate limit
PDFescapeNoNo on free100 pages10 MBSession-based
DocFlyNo (3 tasks/month free)No100 pages100 MB3 files/month
Foxit OnlineYesSometimesVaries100 MBLogin-gated
PDF BuddyEmail requiredNoNone stated5 MB3 files/month
HiPDFNo (limited)No10 pages free10 MBRate-limited

Three things worth flagging up front:

  1. "No watermark" often means "no watermark on the free feature you happened to try." Sejda watermarks nothing; iLovePDF watermarks some outputs on the free tier depending on the operation. Read the confirmation screen before downloading.
  2. "No signup" and "no email" are different. Several tools let you use them without an account but hold the download behind an email prompt.
  3. Page and size limits are the real gating mechanism. A tool with no watermark and a 10-page limit is not the same product as one with a 200-page limit.

1. Sejda

If you asked me to pick one truly-free online PDF editor for people who edit occasionally, Sejda wins. The free tier lets you do three tasks per hour, up to 200 pages, up to 50 MB per file, with no watermark and no account required. Every browser-based operation you would expect is there: edit text, add images, sign, merge, split, compress, convert, redact.

What Sejda does that the others do not: edit existing text. Most free editors let you overlay a text box on top of a PDF. Sejda tries to detect the existing font and edit inline. It is not perfect — scanned PDFs need OCR first, and unusual fonts get substituted — but it is the closest thing to real editing you will get without paying.

The catches, in order of how likely they are to hit you:

  • The 3-task-per-hour cap resets from your first task, not on the hour. If you do three quick edits at 2:47, you are locked out until 3:47.
  • Files are deleted after 2 hours or 5 downloads. Fine for privacy, awkward if you close the tab.
  • The desktop version is paid. The online free tier does not translate to a free download.

Sejda's business model is that heavy users convert to the $7.50/month plan. If you are a light user, that is a fair trade.

2. PDF24

PDF24 is the tool I recommend when someone needs to do "just one thing" — merge, split, compress, convert to Word, add page numbers. There are roughly 30 individual tools on the site, all free, no signup, no watermark, no per-day limit that I have ever hit.

The catch: PDF24 is not really an editor in the "click text and retype it" sense. Its edit tool lets you add text boxes, images, and shapes, but does not modify the underlying text of the PDF. If you want to change a typo in an existing paragraph, PDF24 will not do it — you will end up with the original text plus a white rectangle plus your correction floating on top.

Where PDF24 wins is the utility toolbox. Need to compress a 40 MB scan to email? PDF24. Need to convert 20 JPEGs into one PDF in page order? PDF24. Need to add a header, footer, or watermark? PDF24. The German company behind it (Geek Software GmbH) also offers a genuinely free desktop version for Windows — no upgrade nag, no premium tier — which is unusual.

Privacy note: files are processed on their servers and deleted after processing. If that is a dealbreaker, use their offline desktop tool or one of the free Adobe Acrobat alternatives covered separately.

3. Xodo

Xodo is the annotation and viewing tool most people should use in a browser. It is now owned by Apryse (who also acquired Smallpdf in early 2026) but the free web app remains free.

What Xodo does well:

  • View, annotate, and fill forms with no upload to a third-party server if you use the browser app in offline-capable mode
  • Highlight, comment, draw, and sign without hitting a limit on the free tier
  • Works on Chromebooks and locked-down work laptops where installing anything is blocked

What Xodo does not do well: heavy editing. Text-editing existing content in a PDF is a paid feature. OCR is paid. Batch operations require the mobile or desktop app.

If your use case is "I need to read PDFs, add comments, sign a contract, and send it back," Xodo is the cleanest option in the browser. If your use case is "I need to change the price on page 3 of a supplier PDF," use Sejda instead.

4. Smallpdf

Smallpdf is the polished, marketing-heavy option — the one that shows up first in most search results. On the free tier you get two document tasks per day across the entire site. That is the whole free plan. Everything else pushes you to a $9/month subscription.

The two-per-day limit is annoying but honest. It is disclosed on every tool page. What is less honest is how features are labeled — some tools show a "Free" badge but require signup to actually download, and the definition of what counts as one "task" varies (a merge of five files might be one task or five depending on the flow).

Smallpdf's genuine strengths: the interface is the best in this category, the OCR is competitive with paid tools, and the mobile app is well-built. If you already pay for it, it is fine. If you are looking for free, two operations a day will hit you fast.

For a longer head-to-head, see Smallpdf vs iLovePDF vs Convert Anything to PDF.

5. iLovePDF

iLovePDF is the closest direct competitor to Smallpdf — similar polish, similar toolset, similar business model, slightly more generous free tier. Basic tools work without signup or a strict daily cap, but processing large or many files trips a rate limit that resets on an opaque schedule.

Where iLovePDF is genuinely better than Smallpdf: the merge and split tools work without signup for reasonable file sizes, and the Word/PPT/Excel conversions produce cleaner output on tables and lists. Where it is worse: the editor is weak — you can annotate and add text boxes, but not modify existing text. The mobile ads on the free tier are aggressive.

Two things to know before uploading anything sensitive:

  • Files are processed on iLovePDF's servers (based in Spain) and deleted "within a few hours." Their privacy policy is one of the more transparent in this space, but "on someone else's server" is still on someone else's server.
  • The "iLovePDF Desktop" download is not free. The site is careful to distinguish, but the download buttons are prominent.

Browser-based editors (no upload)

Everything above uploads your PDF to a server, does the work, and sends the file back. For public documents that is fine. For a medical bill, a signed contract, a payroll stub, or anything with an account number on it, it is a bad default.

Two browser-native alternatives that never upload:

Chrome's built-in PDF viewer can already do more than most people realize — fill forms, annotate with the pen tool, print to a new PDF to flatten changes. It does not edit existing text, but for signing and filling it is enough.

Chrome extensions that process locally. Some extensions run everything in the browser using client-side WebAssembly or the Chrome file APIs. Convert Anything to PDF is one example — it converts and combines files without sending them anywhere. The tradeoff is a smaller feature set, but for the "convert, combine, and save" 80% of PDF work, it removes the upload problem entirely.

The general test: if a tool's "How it works" page describes files being "processed on our servers" or "sent securely to our cloud," it uploads. If it describes files being handled "in your browser" or "locally," it does not. Anything vague probably uploads.

For sensitive documents, the pattern of local-only conversion is worth the reduced feature set. For a birthday party invitation, upload away.

Frequently asked questions

What's the best truly-free online PDF editor?

Sejda is the best free online PDF editor for most people. It is the only free tool in this list that edits existing text inline (rather than overlaying new text boxes on top of the original), and its free tier is genuinely usable: 3 tasks per hour, 200 pages per document, 50 MB per file, no watermark, no signup required. The limits reset every hour, which is fine for occasional editing but not for someone processing dozens of documents a day. If you outgrow Sejda's free tier, either upgrade to the paid plan ($7.50/month) or switch to a desktop tool.

Which PDF editors don't watermark?

On the free tier: Sejda, PDF24, and Xodo add no watermarks to any output. Smallpdf does not watermark on its two-per-day free tasks but locks additional operations behind a paywall. iLovePDF varies by operation — most basic tasks are watermark-free, but some conversions and OCR outputs on the free tier show a small "created with iLovePDF" line. Always check the preview screen before downloading, because tools occasionally change what is included in the free tier without repricing publicly.

Can I edit a PDF without uploading it?

Yes, in three ways. First, Chrome's built-in PDF viewer can fill forms, annotate, and print-to-PDF without uploading anywhere. Second, some Chrome extensions like Convert Anything to PDF process files locally in your browser rather than sending them to a server. Third, desktop tools like the free version of PDF24, LibreOffice Draw (which can open and edit PDFs directly), or Foxit Reader run entirely offline. For anything with personal data on it, the local-only option is worth the smaller feature set.

Is Sejda actually free?

Yes — the online version is genuinely free within its limits, and the limits are disclosed upfront. You can do three tasks per hour on documents up to 200 pages or 50 MB, with no signup, no watermark, and no email required. Files are auto-deleted after 2 hours. The desktop version and the "unlimited" tier are paid ($7.50/month), and Sejda is clear about which features are which. The free online tier does not require you to enter a credit card or an email address to access it, which is unusual in this category.

What's the best free PDF editor for Mac?

Preview, the built-in Mac app, handles most PDF editing tasks better than any of the online tools listed here — signing, annotating, merging, splitting, filling forms, rearranging pages, and redacting are all built in. It cannot edit existing PDF text, but neither can most of the "free" online editors. For text editing, LibreOffice Draw (free, offline) can open a PDF and let you modify the actual text of most documents, then export back to PDF. If you need to do this occasionally and privately, that combination — Preview for everything else, LibreOffice Draw for text edits — beats every online tool without ever uploading a file.

Bottom line

The honest ranking for the free tier: Sejda for real editing, PDF24 for utility tasks, Xodo for annotation, and Preview or LibreOffice for anything private. Smallpdf and iLovePDF are fine products but are functionally trialware — the two-per-day and rate-limited free tiers exist to move you to the paid version. If most of what you need is "combine these files into a PDF and save it locally," skip the upload step entirely and use a browser extension like Convert Anything to PDF that never sends your file anywhere.