HermitFile Pro

Merge PDFs into one file, without uploading them

Drop the files in, put them in the order you want, and take back a single PDF. The parser runs in your browser — the documents never leave your machine.

or drag and drop them hereor tap anywhere in this box
any number of files, or a whole folder · combined top to bottom
Any size — there is no upload, so there is no limit.

Nothing leaves this device. Open your browser's Network tab and watch — your file never appears.

Two PDFs or fifty. Drop them all in at once, drag them into the order you want, and the merge happens on your own device. Free, no sign-up, no page limit, and nothing is uploaded.

Files

    Top to bottom is the order they will be joined. Use the arrows to rearrange.

    Rotate

    Rotation is stored as a page attribute, so nothing is re-rendered and no quality is lost.

    Result

    Nothing is uploadedYour browser opens the file and does the work. There is no server to send it to, so there is nothing to leak, log or delete later.
    No account, no sign-upNothing to sign up for, and no cap on file size. Free runs one file at a time, forever. Pro takes a whole batch in one pass.
    No upload, no waitingWork starts the moment you drop the file. A 40 MB photo does not have to travel to a data centre and back.

    Order is whatever you say it is

    Files combine top to bottom, and the arrows move them. Drop them in any order and fix it here rather than renaming everything to 01-, 02- first.

    Rotating does not re-render anything

    A PDF page carries a rotation attribute. Turning a page sets that number — it does not rasterise the page and draw it again. Text stays selectable, vectors stay sharp, and the file does not grow. Tools that rotate by re-rendering turn a crisp document into a picture of a document.

    Password-protected files are refused, not guessed

    If a PDF is encrypted, this tool says so and stops. It does not try to break the password. Open the file in a reader you already trust, save an unprotected copy, and merge that.

    Nothing is uploaded, and that matters more for PDFs

    PDFs are where the contracts, bank statements, medical letters and signed forms live. Every mainstream merge tool asks you to upload those to a server and trust a retention promise — and in March 2025 the FBI's Denver field office warned that criminals were using free online file converters to deliver malware. This page has no server to upload to. The parser runs in your own browser, and the page's security policy blocks it from opening a connection to anywhere but this site. Here is how that is enforced.

    The engine loads only when you use it

    Reading an arbitrary PDF needs a real parser, and a real parser is a few hundred kilobytes. It is not downloaded when the page opens — only when you drop a file. If you landed here by accident, you paid for a page of text and nothing else.

    How to merge PDFs

    1. Drop in every PDF you want joined.
    2. Drag them into the order you want, and rotate any that came in sideways.
    3. Press Merge and download the single file.

    All 39 HermitFile tools

    Every one of them runs in your browser. Nothing you open is uploaded, and nothing is stored.

    Show all tools

    Image tools

    Make a passport photoFinds the face and frames it to a passport specification, then saves at the exact pixel size and under the KB limit. Check my passport photoCheck a passport or visa photo against the rules the authority actually publishes, before you submit it. Check my document uploadCheck a document against a portal’s published format list and size ceiling, before it is silently rejected. Resize to an exact KBHit a pixel size and a KB limit at the same time, without the picture being shrunk behind your back. Crop & rotateCut an exact rectangle by dragging or by typing the numbers. Rotate, flip, and never enlarge. iPhone HEIC to JPGConvert iPhone photos into a format every upload form accepts. Convert formatWebP, AVIF, PNG, JPG and more. Transparency gets the colour you choose instead of turning black. Compress an imageMake the file smaller while the picture stays exactly the same width and height. Clean a fileSee what a file says about you, then remove it — including text under a redaction box. View & remove EXIFSee the camera, timestamp and GPS coordinates hidden in a photo, then save a clean copy. QR code generator & readerEncodes exactly the link you type, with no redirect through anyone else’s domain. Reads codes from an image too. Read text from a scanPull selectable text out of a scanned PDF or a photo of a page, without the scan leaving your device.

    Video tools

    MOV to MP4Turn an iPhone .mov into an .mp4 by swapping the wrapper, with the video copied across and nothing re-encoded. Trim a videoKeep the part you want. The clip is copied rather than re-encoded, so no quality is lost. Split into partsCut a long recording into pieces short enough to post, without re-encoding any of them. Rotate a videoChange the rotation flag a phone wrote instead of re-encoding the picture. Seconds, not minutes. Remove the soundDrop the audio track and copy every frame across untouched — same quality, same size. Video to MP3Convert a video’s sound to MP3, or lift the original audio out byte for byte with nothing re-encoded. Video to GIFPick a range, a frame rate and a size, and get an animated GIF back with nothing uploaded. Green screen swapSwap a green or blue screen for a solid colour with a live preview, no AI model and no watermark. Silence removerFinds the quiet stretches by listening to the audio and cuts them out, with a timeline showing every cut first. Blur pad to a new ratioFit a video into 9:16, 1:1 or another shape with a blurred background instead of black bars. Compress a videoAim at a Discord, email or WhatsApp limit — or your own — and get an MP4 checked afterwards, not just promised. Noise removerLearns your recording’s own background hiss or hum from a quiet stretch, then subtracts exactly that. Auto-reframeCrops a landscape clip to a new shape and pans the crop to follow the motion, instead of a fixed centre. CaptionsBurns an .srt or .vtt subtitle file into the video as styled, timed on-screen text. Beat syncFinds the beats in the clip's own audio and lands a flash or a zoom-punch on each one. Highlight finderScores a clip by loudness and movement, and ranks the best stretches to cut out, losslessly.

    PDF tools

    Merge PDFsJoin several PDFs into one, in the order you choose, and rotate pages losslessly. Split PDFPull out a page range, or break a document into one file per page. Compress a PDFShrink the pictures inside the file and leave the text selectable. Refuses to hand back a bigger file. PDF to imagesRender each page to a JPG or PNG at the resolution you choose. PDF to textPull the words out of a PDF and copy them or save a .txt file. Says so when a PDF is a scan. Remove a PDF passwordSave a copy that opens with no password, using the password you already know. Rotate PDF pagesTurn some pages or all of them, permanently, with no loss of quality. Remove PDF pagesName the pages you want gone and get everything else back as one document. Redact a PDFSearch every page for a name or a number, remove the text itself, then check the finished file. Images to PDFCombine photos into one PDF that lands under the KB limit the portal demands. Bank statement to CSVEvery transaction out of a statement PDF as a spreadsheet, and it checks its own total against the closing balance.