1Upload the PDF documents you want to read — nothing is installed and no reader application is needed.
2Page through the document, zoom, and search inside it wherever the file carries a real text layer.
3Select and copy any text you need straight out of the rendered page.
4Close the tab when you are finished; the uploaded PDF file is deleted from the workers shortly afterwards.
PDF Reader FAQ
Anything specific to PDF here?
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Yes — a PDF is an object graph, not a page image, so text stays selectable and vectors stay sharp no matter what happens to the raster content inside it. It explains what is preserved on screen.
Do I have to upload the file to read it?
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It goes to our workers to be rendered, and is deleted shortly after your session finishes. Nothing about the document is retained and nothing is indexed.
How does PDF Reader display the file?
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Concretely, the document is rendered page by page in the browser with its text layer intact, so you can search and select without downloading anything or installing a reader. Nothing is installed and nothing is downloaded to open it.
Can I search inside the document?
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Yes, wherever the file has a real text layer. A scanned document that has never been through text recognition is a picture of words as far as any reader is concerned, and will not be searchable until it is OCR'd.
Does PDF Reader cost anything?
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No. PDF Reader is free without an account, and nothing is stamped onto the pages. Uploaded documents are deleted from the workers shortly after the job completes.
What can I upload to PDF Reader?
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Any standard PDF, including ones produced by a scanner, by a word processor or by a print driver. Files with an owner password that only restricts editing are handled; files that need a user password to open are not, and we do not attempt to break encryption.
Is there a file size limit on PDF Reader?
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Yes: free accounts process documents up to 25 MB each, which covers most reports and contracts but not a long scanned document at 600 DPI; Ghostscript and qpdf do the work. Scanned PDFs are the usual thing that exceeds it, and compressing the document first is normally enough to bring it back under.
Do bookmarks, links and form fields survive?
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Outlines, internal links and annotations are preserved wherever the operation allows it. Digital signatures are the exception: any change to the file necessarily invalidates a signature, because that is precisely what a signature is for.
Why does a MP3 site host PDF Reader?
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MP3.to is built around the format that made portable audio ordinary: universally playable, small enough to ignore, and lossy in a way that only matters if you keep re-encoding it. Audio jobs cluster: the same person who needs a format changed usually needs the file cut, levelled or made smaller in the same sitting. Putting PDF Reader behind the same upload, the same caps and the same account is what turns three tabs into one.
What should I do with the result once PDF Reader is finished?
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The converter on this site moves audio between MP3, WAV, FLAC, M4A, OGG and Opus, so the output format is a decision you can leave until the end rather than commit to at the start. Doing that after PDF Reader rather than before means the encode happens once, on the file you actually settled on, instead of twice.
Is PDF Reader here the same tool the sibling sites run?
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The engines are shared — the same ffmpeg build, the same workers, the same limits. What a MP3 site adds is a point of view about bitrates, about what survives an encode and about when a lossless intermediate is worth the upload time. It also starts from one fact about the format this site is named after: MP3 frames are fixed-size blocks, so a cut lands on a frame boundary and gapless playback markers do not survive a re-encode.
Do I need an account, and does anything get kept?
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No account, and nothing is kept: uploads are deleted from the workers shortly after the job finishes, nothing is listened to and nothing is indexed. Free accounts exist for history and batch size, not for access.
