Hiring a professional, human file converter ensures consistent formatting over relying on free, generic and versatile though unsecure file converters that run through algorithm APIs like CloudConvert (
https://cloudconvert.com/) and Convertio (
https://convertio.co/) to convert your most important Microsoft Office365 and other document formats from rich-text and ODF and TXT to .doc, .docx (Word); multimedia ebooks (EPUB, MOBI, AZW, and PDF. TXT) files, archive files like ZIP, image files like GIF, TIFF or JPG files using "lossy compression" to compress pixels per image, or audio files like AAC, M4A, MP3, WMA and FLAC, video files (MP4. MP4 (MPEG-4 Part 14), .MOV (QuickTime Film), WMV. ... AVI, .AVCHD. FLV, F4V, .SWF, .MKV, .WEBM or HTML5) . or spreadsheet files (.xls, .xlsx (Excel), and presentation files is not an option.
Converting the most common top files, JPEG, TIFF and PDF, into any format can need specialize help for broad reasons from needing ultra-high quality files to having too many files for one person to convert alone to security and HIPPA requirements under the Health Insurance Portability and Accountability Act with more specialized jobs that require an expert.
Three good cases of when file conversions in the correct format where human converters with the right expertise are essential are (1) Identity documents and submissions to and form government agencies like the IRS (
https://www.irs.gov/help/file-formats) and in Australia, SIGBOX managed by many government agencies (
https://macquariegovernment.com/security-services/secure-sigbox/) originally developed by Cocoon Data (
https://cocoondata.com/); (2) film festival submissions by independent filmmakers to organizers like Toronto, Tribeca and SoHo film festivals (previously Amazon's Withoutabox service managed these submissions but closed in 2019:
https://www.indiewire.com/2018/10/amazon-closing-withoutabox-film-festival-submission-service-1202013669/); and (3) College Submissions requiring specific accepted file formats (Some colleges like Bryn Mawr host their own document converters:
https://www.brynmawr.edu/inside/offices-services/access-services/document-converter)