QUICK GUIDE

What should I use
when a file is private?

A quick guide. See the app in action.

PDF Compressor: Sign & Merge App Store preview 1PDF Compressor: Sign & Merge App Store preview 2
PDF Compressor: Sign & Merge
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Steps, answers & details

Most people do not wake up looking for a "file toolkit." They have a practical problem: a PDF is too large for email, a form needs a signature, a recording is too long to send, or a document has to be turned into images.

  1. Private documents: contracts, IDs, invoices, bank statements, school forms, medical papers, and client PDFs.
  2. Private recordings: voice memos, interviews, meetings, unreleased audio, lectures, and podcasts.
  3. Private videos: family clips, personal recordings, and short videos you need to send.
If you need to...Use thisExampleWhy it helps
Make a PDF smallerCompress PDFA contract is too large for emailDownload a smaller copy without creating an account
Sign a PDFSign PDFA simple form needs your typed signatureAvoid printing, scanning, and uploading
Merge PDFsMerge PDFAn application asks for one PDF, not five filesCombine documents into one attachment
Add a watermarkWatermark PDFYou need DRAFT or CONFIDENTIAL on every pageStamp your PDF with your text plus a small Just Compress app logo watermark
Make photos into a PDFJPG to PDFReceipts or phone scans need to become one documentTurn images into a PDF for forms and portals
Turn PDF pages into imagesPDF to JPGA page has to be shared as an imageSave pages as JPG files
Make audio smallerCompress AudioA voice memo is too large to sendCreate a smaller audio file
Split a long recordingSplit AudioA lecture or interview needs smaller partsBreak one file into 2, 3, 4, 5, or 10 pieces
Cut audioTrim AudioThe start has silence or the end has mistakesKeep only the part you need
Make a short video smallerCompress VideoA short MP4 or MOV is too large to shareReduce the file size before sending
Start with Compress PDFMake a private PDF smaller without uploading it.Open tool → Try Compress AudioShrink voice memos, interviews, and audio clips.Open tool → Privacy basicsWhy no-upload tools are safer for private files.Read why →